What does the AvastUI.exe file do?
The AvastUI.exe process is also known as avast! Antivirus and is a part of Avast Free Antivirus or, as the case may be, Avast Internet Security. This software is produced by AVAST Software (www.avast.com) or, as the case may be, ALWIL Software (www.avast.com). An obsolete or defective version of AvastUI.exe can cause problems for your computer that can range from slowness to error messages such as these:
- avast! Antivirus has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- avast! Antivirus 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)
- AvastUI.exe has encountered a problem and needs to close. (Windows XP)
- Access violation at address FFFFFFFF in module AvastUI.exe. Read of address 00000000.
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What you should know about AvastUI.exe avast! Antivirus
AvastUI.exe is not part of Windows, but it is important nonetheless. AvastUI.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 4,085,896 bytes (10% of all these files), 5,227,112 bytes as well as 49 other variants.
The original file has a digital certificate (see its file properties). It was developed by a so-called third party provider - and not by Microsoft. This AvastUI program does not appear as a visible window, but only in Task Manager. When Windows starts, this process is automatically started at the same time (Registry: MACHINE\Run). It also can also affect other applications by changing their properties. Such manipulation can cause an application to do things other than what it is intended to do. AvastUI.exe is capable of track other applications as well as record keystrokes. For this reason, 47% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
A AvastUI.exe file has a 56% certainty of being dangerous if it is found in a subdirectory of C:\. In this case, the file size is usually 4,767,304 bytes (50% of all these files) or, as the case may be, 4,858,968 bytes. The AvastUI file also can also affect other applications by changing their properties. Such manipulation can cause an application to do things other than what it is intended to do. This AvastUI.exe process does not appear as a visible window, but only in Task Manager. The file contains a digital signature from Verisign, a subsidiary of Symantec. Verisign thereby confirms this file's authenticity and integrity. The file has a digital signature. This confirms that the producer has been registered with a certificate authority. When Windows starts, this process is automatically started at the same time (Registry: MACHINE\Run). The file was developed by a so-called third party provider - and not by Microsoft. AvastUI.exe is capable of record keystrokes as well as track other applications.
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 AvastUI.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 AvastUI?
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 Avast Free Antivirus or Avast Internet Security
To remove avast! Antivirus from your computer, please follow the manual instructions below or use an automatic uninstaller product.
- Click the Windows Start Button. In Windows 8, look for Control Panel.
- Click Control Panel.
- Click Uninstall a program.
- Look for Avast Free Antivirus or Avast Internet Security in the list of available programs.
- Click Uninstall.
How to tell if AvastUI.exe (avast! Antivirus) 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 avast! Antivirus. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for avast! Antivirus 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 AvastUI.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.