What does the avgnsa.exe file do?
The avgnsa.exe process is also known as AVG Online Shield Service or, as the case may be, AVG Network scanner Service and is a part of AVG Internet Security. This software is produced by AVG Technologies CZ, s.r.o (www.freeavg.com). An obsolete or defective version of avgnsa.exe can cause problems for your computer that can range from slowness to error messages such as these:
- AVG Online Shield service has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- AVG Online Shield service has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 10, 8, 7)
- avgnsa.exe has encountered a problem and needs to close. (Windows XP)
- Access violation at address FFFFFFFF in module avgnsa.exe. Read of address 00000000.
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What you should know about avgnsa.exe AVG Online Shield service
avgnsa.exe is not part of Windows, but it is important nonetheless. Avgnsa.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 1,636,624 bytes (8% of all these files), 1,196,384 bytes as well as 15 other variants.
The original file is digitally signed. Check your file. The application does not have a visible window, and does not appear on the taskbar. The avgnsa file has a digital signature. This confirms that the producer has been registered with a certificate authority. This file does not come from Microsoft and is not part of the operating system. You can find the file or its related application in Control Panel under Programs. You can then rerun the setup or uninstall the program. For this reason, 6% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves avgnsa.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about avgnsa?
The file spreads very slowly and does not often make an appearance. Therefore, feedback from other users is not yet available.
Summary: source: file.net
How to uninstall AVG Internet Security
To remove AVG Online Shield service from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. You find it in the lower left corner of the taskbar.
- Type the word uninstall.
- Click Add or remove programs.
- Now locate AVG Internet Security in the list of displayed applications.
- Click the program, and then click Uninstall.
How to tell if avgnsa.exe (AVG Online Shield service) was uninstalled cleanly
After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of AVG Online Shield service. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for AVG Online Shield service or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.
What to do if a program does not uninstall
The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.
Last but not least
If Windows not working quite right for you, or if startup is taking a long time, or avgnsa.exe is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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