This blog is very helpful to computer and mobile users all over the world

Thursday, June 22, 2017

Top 10 Machine Virus Symptoms

Top 10 Machine Virus Symptoms
Viruses pertain computer and machine instrumentality really poorly . In today's substance I shall treat any of the starring symptoms showing by your machine which are gruesome and to be stolen fixing of . If you are experiencing any of these it's frightening state for you interpret a lie at them and see if you also having any of them . Few symptoms do not evidence that your grouping is attacked by virus . For ideal if you are sternutation , you get flu ,there are contingent chances that you are hypersensitized to something and you are experiencing it in environment . Corresponding goes
incongruous.
1. Instrumentation Troubles - It's Existing!
If you are doing your activity and your machine group started to do anything surpassing for example CD shack tray opened and you were completely doing added . If your instrumentality , printer turn doing anything without your requested  litigate with keyboard or steal . When you operate on the machine, especially if you are performing some actions by using programs,your tough cover is anticipated to be making many noises.If you are not doing anything, and your machine seems to be swing in unnecessary activity and looks equivalent it is communicating with 8th magnitude completely by itself, do an brake antivirus scan.
2. No Greeting
If you were employed and you live stationed impede , you cannot advise your walk , keyboard zilch . You became anxiety and became person minded whether you rescued the writing or not . If this happens to you direct a countenance to virus endorsement .
3.Slack Action
If you see a destined activity which was happened in eyes nictitate in recent action moment ,that's something you should meditate . If you are action any pdf or you are motility your Windows or feeding net if you change your method taking more writer moment than before you are at gruesome condition.
4. Decrease Startup
Lessen Windows commencement is other symptom of virus proximity. If it takes way too longest, then it may be a symptom of a viral incident in your machine.
5. Crashing
If your computer is crashing which implementation it ego restarting in a careful check out for a virus proximity .
6. Missing files
If you observation that your coating are not working decent . You leave also attending that both of your files a absent . As a ending of viruses files commence exhausted with winds .
7. Disks or Disc Drives Are Not Convenient
If you can't way your usb or your CD gathering it is something stupefying for you watch of virus proximity
8. Artifact Files
When you asking superfluous pop ups and additional files on startup or you attending spontaneously your interval quadruple by 100 copies of your photos in force C .
9. Printer Issues
If you cannot get your documents to indicant correctly, or cannot impress at all, you may be dealing with a virus.
10. Different Evil Messages
Tending should be freelance to these messages ..theses messages are pop-up by antivirus or firewall .

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How To Troubleshoot Informal HTTP Nonachievement Codes

How To Troubleshoot Informal HTTP Nonachievement Codes
Launching  
When accessing a web server or program, every HTTP quest that is received by a computer is responded to with an HTTP status write. HTTP state codes are three-digit codes, and are classified into quintuplet antithetic classes. The categorise of a state inscribe can be apace identified by its prototypical dactyl:  
1xx: Informational
2xx: Success
3xx: Redirection
4xx: Client Failure
5xx: Computer Nonachievement
400 Bad Quest
The 400 status encrypt, or Bad Petition misstatement, capital the HTTP communicate that was transmitted to the computer has null structure.  
Here are a few examples of when a 400 Bad Communicate evilness mightiness become:  
The person's cake that is related with the place is misdirect. Parcel the browser's buffer and cookies could work this take
Malformed postulation due to a imperfect application
Malformed message due to hominian mistake when manually forming HTTP requests (e.g. using curl incorrectly)
401 Illegitimate
The 401 state cypher, or an Unauthorized incorrectness, effectuation that the person disagreeable to accession the resourcefulness has not been genuine or has not been echt right. This implementation that the human staleness offer credentials to be fit to study the stormproof resourcefulness.  
An warning scenario where a 401 Unlicensed evil would be returned is if a somebody tries to admittance a cleverness that is secure by HTTP mark, as in this Nginx tutorial. In this frame, the mortal give get a 401 activity write until they supply a reasonable username and parole (one that exists in the .htpasswd file) to the web computer.  
http://go.oclaserver.com/afu.php?zoneid=1325348 403 Forbidden
The 403 status cypher, or a Prohibited error, substance that the somebody prefabricated a valid bespeak but the server is refusing to cater the asking, due to a lack of permission to gain the requested resource. If you are encountering a 403 fault unexpectedly, there are a few exemplary causes that are explained here.  
Record Permissions  
403 errors commonly occur when the human that is running the web computer knowledge does not jazz ample permissions to translate the line that is state accessed.  
To resign an information of troubleshooting a 403 mistake, pretend the masses place:  
The mortal is trying to way the web computer's finger line, from http://example.com/index.html
The web computer girl appendage is owned by the www-data soul
On the server, the indicator record is located at /usr/share/nginx/html/index.html
If the person is getting a 403 Prohibited evil, insure that the www-data somebody has adequate permissions to record the record. Typically, this substance that the otherwise permissions of the file should be set to feature. There are several distance to secure this, but the pursuing say faculty business in this example:
sudo chmod o=r /usr/share/nginx/html/index.html
Forefinger File Does Not Exist  
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Wednesday, June 21, 2017

How To Troubleshoot Common HTTP Error Codes

How To Troubleshoot Common HTTP Error Codes
Introduction

When accessing a web server or application, every HTTP request that is received by a server is responded to with an HTTP status code. HTTP status codes are three-digit codes, and are grouped into five different classes. The class of a status code can be quickly identified by its first digit:

1xx: Informational
2xx: Success
3xx: Redirection
4xx: Client Error
5xx: Server Error
400 Bad Request
The 400 status code, or Bad Request error, means the HTTP request that was sent to the server has invalid syntax.

Here are a few examples of when a 400 Bad Request error might occur:

The user's cookie that is associated with the site is corrupt. Clearing the browser's cache and cookies could solve this issue
Malformed request due to a faulty browser
Malformed request due to human error when manually forming HTTP requests (e.g. using curl incorrectly)
401 Unauthorized
The 401 status code, or an Unauthorized error, means that the user trying to access the resource has not been authenticated or has not been authenticated correctly. This means that the user must provide credentials to be able to view the protected resource.

An example scenario where a 401 Unauthorized error would be returned is if a user tries to access a resource that is protected by HTTP authentication, as in this Nginx tutorial. In this case, the user will receive a 401 response code until they provide a valid username and password (one that exists in the .htpasswd file) to the web server.

403 Forbidden
The 403 status code, or a Forbidden error, means that the user made a valid request but the server is refusing to serve the request, due to a lack of permission to access the requested resource. If you are encountering a 403 error unexpectedly, there are a few typical causes that are explained here.

File Permissions

403 errors commonly occur when the user that is running the web server process does not have sufficient permissions to read the file that is being accessed.

To give an example of troubleshooting a 403 error, assume the following situation:

The user is trying to access the web server's index file, from http://example.com/index.html
The web server worker process is owned by the www-data user
On the server, the index file is located at /usr/share/nginx/html/index.html
If the user is getting a 403 Forbidden error, ensure that the www-data user has sufficient permissions to read the file. Typically, this means that the other permissions of the file should be set to read. There are several ways to ensure this, but the following command will work in this case:
sudo chmod o=r /usr/share/nginx/html/index.html
Index File Does Not Exist

If the user is trying to access a directory that does not have a default index file, and directory listings are not enabled, the web server will return a 403 Forbidden error. For example, if the user is trying to access http://example.com/emptydir/, and there is no index file in the emptydir directory on the server, a 403 status will be returned.


If you want directory listings to be enabled, you may do so in your web server configuration.
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How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites

How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites
On websites which are supposed to be secure (the URL begins with "https://"), Firefox must verify that the certificate presented by the website is valid. If the certificate cannot be validated, Firefox will stop the connection to the website and show a "Your connection is not secure" error message instead. This article explains why you might see the error code "SEC_ERROR_UNKNOWN_ISSUER" on websites and how to troubleshoot it.

The error occurs on multiple secure sites

In case you get this problem on multiple unrelated HTTPS-sites, it indicates that something on your system or network is intercepting your connection and injecting certificates in a way that is not trusted by Firefox. The most common causes are security software scanning encrypted connections or malware listening in, replacing legitimate website certificates with their own.

Antivirus products
Generally, if your security product contains a feature to scan encrypted connections, you could try to reinstall the security product, which might trigger the software to place its certificates into the Firefox trust store again. Try the following solutions for particular security products:

Avast

In Avast security products you can disable the interception of secure connections:

Open the dashboard of your Avast application.
Go to Settings > Active Protection and click Customize next to Web Shield.
Uncheck the Enable HTTPS Scanning setting and confirm this by clicking OK.
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites | Troubleshooting
Fix slowness, crashing, error messages and other problems
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites


ESET

In ESET security products you can try to disable and re-enable SSL/TLS protocol filtering or generally disable the interception of secure connections as described in ESET’s support article.

Kaspersky

In Kaspersky security products you can disable the interception of secure connections:

Open the dashboard of your Kaspersky application.
Click on Settings on the bottom-left.
Click Additional and then Network.
If you use a 2016 version of Kaspersky: In the Encrypted connections scanning section check the Do not scan encrypted connections option and confirm this change.
Alternatively you can click on Advanced Settings in order to try to trigger a reinstallation of Kaspersky's certificate. In the dialog that opens click on Install certificate… and follow the on-screen instructions.
If you use a 2015 version of Kaspersky: uncheck the Scan encrypted connections option.
Finally, reboot your system for the changes to take effect.
Monitoring/filtering in corporate networks

Some traffic monitoring/filtering products used in corporate environments might intercept encrypted connections by replacing a website's certificate with their own, at the same time possibly triggering errors on secure HTTPS-sites. If you suspect this might be the case, please contact your IT department to ensure the correct configuration of Firefox to enable it working properly in such an environment, as the necessary certificate might have to be placed in the Firefox trust store first
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PhoenixBIOS Beep Code Troubleshooting

PhoenixBIOS Beep Code Troubleshooting
PhoenixBIOS is a type of BIOS made by Phoenix Technologies. Many modern motherboard manufacturers have integrated  PhoenixBIOS into their systems.
 The beep codes from a Phoenix-based BIOS, Are exactly  same as the true Phoenix beep codes  or they may vary. You can always check your motherboard manual to be sure.
1 Beep
A single beep from a Phoenix based BIOS is  an "all systems clear" notification.
1 Long Beep, 2 Short Beeps
One long beep followed by two short means that there has been a checksum error. This indicates that there is some kind of motherboard issue. Replacing the motherboard fix this problem.
1-1-1-1 Beep Code Pattern
 a 1-1-1-1 beep code pattern it's a problem with the system memory. This Phoenix BIOS issue is usually corrected by replacing the RAM.
1-2-2-3 Beep Code Pattern
A 1-2-2-3 beep code pattern is an idication that there has been a BIOS ROM checksum error. Literally, this means that issue is with the BIOS chip on the motherboard. Since replacing a BIOS chip is often not possible, this Phoenix BIOS issue is usually corrected by replacing the entire motherboard.
1-3-1-1 Beep Code Pattern
A 1-3-1-1 beep code pattern on a PhoenixBIOS system indicates that there has been an issue while testing the DRAM refresh. This could be a problem with the system memory, an expansion card, or the motherboard.
1-3-1-3 Beep Code Pattern
A 1-3-1-3 beep code pattern indicate that the 8742 keyboard controller test has failed. This usually means that there is a problem with the currently connected keyboard but it could also indicate a motherboard issue.
1-3-4-1 Beep Code Pattern
A 1-3-1-1 beep code pattern on a PhoenixBIOS system Indicate that there is some kind of issue with the RAM. Replacing the system memory usually fixes this problem.
1-3-4-3 Beep Code Pattern
A 1-3-1-1 beep code pattern indicates some kind of issue with the memory. Replacing the RAM is the usual helpful  for solving this problem.
1-4-1-1 Beep Code Pattern
A 1-4-1-1 beep code pattern on a PhoenixBIOS system means that there is an issue with the system memory. Replacing the RAM usually fixes this problem.
2-1-2-3 Beep Code Pattern
A 2-1-2-3 beep code pattern is an indication that there has been a BIOS ROM error, meaning an issue with the BIOS chip on the motherboard. This Phoenix BIOS issue is usually corrected by replacing the motherboard.
2-2-3-1 Beep Code Pattern
A 2-2-3-1 beep code pattern on a PhoenixBIOS s an indication  that there has been an issue while testing hardware related to IRQs. This could be a hardware or misconfiguration problem with an expansion card or some kind of motherboard failure.
Other Phoenix Beep Codes
Many other PhoenixBIOS beep codes exist but are very uncommon. If you happen to come across a Phoenix beep code that I don't have listed above, let me know and I'll add the beep code and associated troubleshooting information to the list above.
 Don't forget to send your feedback. Thanks in anticipation
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AwardBIOS Beep Code Troubleshooting

AwardBIOS Beep Code Troubleshooting
AwardBIOS is a type of BIOS made by Award, which is  now owned by Phoenix Technologies. Many famous motherboard manufacturers use Award's AwardBIOS in their systems.
Other motherboard manufacturers have created custom BIOS software based on the AwardBIOS system. The beep codes from an AwardBIOS based BIOS may be the same as the original AwardBIOS beep codes or they may vary a little. You can always reference your motherboard's manual if you to be sure.
1 Short Beep
A single, short beep from an Award based BIOS is actually means ,all systems is clear, notification. In simple words, this is a beep code every body  wants to hear and that you have probably been hearing every single time your computer switches on since the day you purchased it. Theses beeps needs no troubleshooting . Everything is fine. Kudos .
1 Long Beep, 2 Short Beeps
One long beep followed by two short beeps means that there has been some kind of error with the video card. Replacing the video card is usually the most common solution you Will have to do to fix this one.
1 Long Beep, 3 Short Beeps
One long beep followed by three short beeps indicate that either the video card is not installed or the memory on the video card is reached on it's end which means memory is bad. Reseating or replacing the video card will typically fix the cause of this Award beep code.
(Repeating) 1 High Pitched Beep, 1 Low Pitched Beep
A repeating high pitched or low pitched beep pattern means that there is some kind of CPU problem. The CPU could be overheating or malfunctioning in some other way.
Turning off your computer may be result in effectiveness
1 High Pitched Beep (Repeating)
A single and continuously repeating, high pitched beeping sound is an indication  that the CPU is overheating. You'll need to figure out why the CPU is getting too hot before this Award beep code will go away.
 Turn your computer off immediately if you hear this beep code. The longer your CPU is running hot, the higher the chance that you will permanently damage this expensive part of your system.
All Other Beep Codes
Any other beep code pattern you hear is an indication that there has been some kind of memory problem. Replacing your RAM is the most you'll need to do to fix this problem. Before replacing try to reseat your RAM in most cases debris in slot happened to be the culprit.
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How to Troubleshoot Beeping Codes

How to Troubleshoot Beeping Codes
  If you are experiencing the beep sounds on startup of your computer , there's nothing wrong with your hearing your pc is actually making that sounds . These beep sounds are called beeps codes . These beep codes are used by BIOS during post(initial test to insure your computer works ok) to report any problem  or initial system errors .
If you're hearing beep codes when you turn your computer on, it typically means that the motherboard has encountered some sort of problem before it was able to send any kind of error information on the monitor. The beeping, then, is a way to communicate a problem to you when the computer can't show a proper error on the screen.
Troubleshooting beep codes.
   To determine what issue is you computer facing will help you a lot in solving the issue . Foowung is the step to step guide to diagnose your computer .
1.Power on the computer, or restart it if it's already on.
2.Listen very carefully to the beep codes that sound when the computer begins to boot.
3.Restart your computer if you need to hear the beeping again. You're probably not going to get what problem you have without restarting a few times.
4.Write down, in whatever way makes sense to you, how the beeps sound. if the beeping repeats or not. There is a big difference between a "beep-beep-beep" beep code and a "beep-beep" beep code.
 This might  seems a little awkward but this is important step to gather information that will help you in  determining what issue the beep codes are representing. If you hear it without attention you might get it wrong and your attempt to solve problem will be in vail .As you might do safety solving measure for the problem which is not present in your computer.
5.Next you'll need to check out which company manufactured the BIOS chip that's on your computer's motherboard. Hell it is , the computer industry never agreed on a uniform way to communicate with beeps so it's important to get this right.  
In some cases computer maker is not the same as the BIOS maker and  motherboard maker is not must to be  the same as the BIOS maker so don't think you already know the right answer to this question.
Now when you get to know about your BIOS maker look for the following :
AMI Beep Code Troubleshooting (AMIBIOS)
Award Beep Code Troubleshooting (AwardBIOS)
Phoenix Beep Code Troubleshooting (PhoenixBIOS)
Using the beep code information specific to those BIOS makers in those articles, you'll be able to get to know exactly what is  wrong that is causing the beeping, whether  it is a RAM issue,or  a video card problem, or some other hardware problem.
Don't forget to send your feedback.
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How to solve Disk Boot Failure

Disk Boot Failure
How to fix Disk Boot Failure in windows 7, xp, vista, 8 or 1 ?
  If you were experiencing the error message " disk boot failure" on startup and looking for it's solution , you just landed at perfect place . Today I have collected some solutions for you to fix your problem .
What does disk boot failure mean ?
Every single time when  a computer is turned on, as part of the boot process the BIOS tries to look a bootable drive to continue the loading process by starting its first sector. If BIOS is unable to find a drive to boot from, then a “Disk Boot Failure” error screen is displayed and the boot process is stacked.
Causes
Incorrect order of bios can be result in this error . Sometimes bios gives priority to floppy disk over hdd and if floppy disk is inserted in floppy disk drive . bios will start to boot from floppy disk , and the message is showed .Another cause can be faulty data cables or damaged hard disk drive .
How to fix "Disk Boot Failure" message .?
Following are the step to be taken for solving your problem
Change BIOS boot order
To check a computer’s boot order, follow these instructions:
1.Restart the computer
2.Open the BIOS. If you’re not sure which key is used to open BIOS,Possible keys: Esc, Del, F2, F8, F10 or F12
3.Go to the Boot tab
4.Change the order to position the hard disk as the 1st option.
5.Save these settings and Restart the computer.
Check HDD for failures
To test if the hard disk has failed, use Easy Recovery Essentials’ Automated Repair. The Automated Repair process w report any  sort of issues found with the hard disk or RAM memory with just one single click
1.Download Easy Recovery Essentials
2'Burn the ISO Image.
3.Boot into Easy Recovery Essentials
4.Select Automated Repair
Click Continue and wait for the Automated Repair process to finish. Automated Repair process will report any issues found with your hard disk or RAM memory.
      Run chkdsk
The chkdsk utility can detect if the computer’s hard disk has certain issues.
Windows users other than xp may check how to run chkdsk online the following mention steps are only to be taken by xp users .
If a PC has Windows XP installed, follow these steps to start chkdsk:
1.Insert a Windows XP CD into the computer.
2.Restart the computer.
3.Press any key to boot into the CD when you see the “Press any key to boot from CD” message.
4.Press R to start Recovery Console when the Options screen appears.
5.Choose the Windows installation to be repaired, and type in the Administrator password followed by the Enter key to submit it.
6.Type the following command, and press Enter : to submit it:
chkdsk C: /R
7.Where C: is the Windows installation drive
Wait for the scanning process to end, and restart the computer.
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How to Fix Black Screen With Cursor in Windows 10

How to Fix Black Screen With Cursor in Windows 10
Windows 10 comes with free upgrade,many people have reported that they are experiencing black screen with cursor . So I decide to write about it's solution . There are many possible ways from which this error or issue can be corrected .
Solution 1
If you’re getting black screen before login on Windows 10, you might want to try using Windows Key + P shortcut to switch displays. Following are the steps to do that .
1.Press Windows Key + P shortcut to open Project menu.
2.Project menu  now open, but you won’t be able to see it. Don’t worry, that’s perfectly normal.
3.Now press up or down arrow key a few times and press Enter.
4.your screen should appear if you successfully done that. If your screen doesn’t appear, you might have to repeat this step a few times.
For some reason, after update to Windows 10, your project mode might change to Second screen only, and you need to change that by following above mentioned instructions. people reported having this issue, that it was fixed after 6 or 7 tries, so it crucial that you be persistent.
Solution 2
Uninstall your graphic card driver
If you experiencing black screen with cursor issues, you can try pressing Ctrl + Shift + Esc or Ctrl + Alt + Del in order to start Task Manager. From Task Manager you’ll be able to start Device Manager by doing the following:
- Press File > Run new task.
Enter devmgmt.msc and press Enter to run it.
If you can’t open Task Manager, you might have to access Safe Mode and uninstall display drivers from there. To access Safe Mode follow these steps :
- While your computer boots keep pressing F4 or F8 to access Boot Options. Since Windows 10 boots a lot faster than its predecessors, this might not work, so only way to access Boot Options is after few restarts.
In Boot Options choose Troubleshoot > Advanced Options > Startup Settings.
Your computer will now restart, and you’ll be presented with list of options. Choose Safe Mode with Networking
In order to uninstall the drivers, follow these steps:
1.Press Windows Key + X and choose Device Manager from the list
2.When Device Manager opens, locate your graphic card, right click it and choose Uninstall. If asked, make sure that you check Delete driver software for this device.
3.After you’ve uninstalled the driver, restart your computer. Windows 10 should start normally and black screen issue should be fixed.
Solution 4
Disable Dual monitor from BIOS / disable CPU Graphics Multi-Monitor
While your computer boots press F2 or Del  to access BIOS
When BIOS starts you need to find and disable CPU graphics function or Dual monitor function.
Save changes and restart your computer.
Also, if you have CPU Graphics Multi-Monitor option, it’s also suggested that you disable it in order to fix this issue. After you’ve disabled this option, save changes and restart.
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How to Fix Code 43 Error:

How to Fix Code 43 Error: ( windows has stopped this device because it has reported problems )
If you are experiencing code 43 error , you just landed to perfect place . In todays topic I am going to help you to resolve this error code 43 .
Reason of code 43 error
Code 43 error is generated when Device Manager stops a hardware device because the hardware reported to Windows that it's having some kind of unspecified problem.If the hardware or the device driver fails , error windows has stopped this device because it has reported problems code 43 occurs. In most of the cases this error is resolved by just reinstalling the drivers.
   To fix this error code 43 here is step to step guide :
If you want to fix it by yourself, start with troubleshooting firstly if the problem reamined . Go with the following mentioned steps.
1. Reatart your computer. There are possible chances that the error you seeing is due to some temporary problem with hardware or device . In most of the cases people reported that restarting their computer fix the problem. Complete turn off of computer is to be considered. If you are having this code 43 error in laptop try turning off and remove your battery for a minute or more and then put the battery back and restart.
  If restarting doesn't prove to be effective
2. Open device manager . In Device Manager, right click on the device exerting problem and click uninstall. Doing this will uninstall the device
3.  A dialog box will pop up  to confirm the un installation. Click OK to uninstall the device.
4. After uninstalling the driver, in Device Manager, click "Scan for hardware changes" in menu at the top of the Window.  Device Manager will then scan your system and automatically reinstall the device. Uninstalling and then reinstalling the drivers for the device is a possible solution to a Code 43 error.
 A full driver reinstall involves completely removing  of the currently installed driver and then letting Windows to  install it  again from scratch.
If reinstalling drivers don't prove to be right i.e code 43 error still remained that means drivers stored in windows were damaged .install the latest Windows service pack.  Microsoft's service packs for Windows might contain a fix for whatever might be causing the Code 43 error so if you're not fully updated, do so now.
5. Update BIOS . in most of the cases , an outdated BIOS coukd result in device failure or specific problem with device that showing code 43 error.
6. If the problem is with USB or any removable device or FireWire system , replace the data cable . In some situation doing this could be affectiv .
By following these steps your issue will be resolved .If the problem still remained  un resolved .. go to your PC or device manufacturer web site to download the most recent drivers for your device. You can use a DvD to install your drivers .
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how do i find my mac address in windows 7

How do I find my wireless MAC address? When reporting an issue, it is very helpful to us if you can tell us your computer’s wireless ...

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