What does the wuauclt.exe file do?
The wuauclt.exe process is also known as Windows Update or, as the case may be, Automatic Updates and is a part of Microsoft Windows Operating System or, as the case may be, Windows Update. This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of wuauclt.exe can cause problems for your computer that can range from slowness to error messages such as these:
- Windows Update has stopped working. Windows is checking for a solution to the problem... (Windows 10, 8, 7)
- Windows Update 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)
- wuauclt.exe has encountered a problem and needs to close. (Windows XP)
- Access violation at address FFFFFFFF in module wuauclt.exe. Read of address 00000000.
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What you should know about wuauclt.exe Windows Update
wuauclt.exe is a Windows system file. The file wuauclt.exe is found in the C:\Windows\System32 directory.
Frequently occurring are file sizes such as 53,784 bytes (42% of all these files), 53,472 bytes as well as 12 other variants.
The file has a digital signature. This confirms that the producer has been registered with a certificate authority. The original file by Microsoft is digitally signed. So please check the file on your computer. The application does not have a visible window, and does not appear on the taskbar. For this reason, 8% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
wuauclt.exe is a system file used by Microsoft Windows, and appears in Windows Task Manager as a process named "Windows Update." However, some viruses or Trojans use the same file name in order to remain undetected (for example W32.Virut.CF (recognized by Symantec), as well as Trojan:Win32/Msposer.A or, as the case may be, Virus:Win32/Virut.BN (recognized by Microsoft)).
To be really safe, you should scan your computer with two different anti-virus engines. You can use a free Anti-Malware scanner for this purpose.
Objectionable files with the same file name have the following characteristics:
- A wuauclt.exe file has a 100% certainty of being dangerous if it is found in a subdirectory of C:\. In this case, the file size is usually 24,064 bytes. There is no embedded description in this file. These days, this is rather unusual The application does not appear as a visible window, but only in Task Manager. Windows starts the process each time that the computer boots up (Registry: RunOnce, Run, MACHINE\Run). It was developed by a so-called third party provider - and not by Microsoft. Wuauclt.exe is capable of record keystrokes.
- A wuauclt.exe file has a 100% certainty of being dangerous if it is found in a subdirectory of "C:\Users\USERNAME". In this case, the file size is usually 77,824 bytes. The program executes in the background, and can only be terminated using Windows Task Manager. Several users are not satisfied with the software and want to remove it. The wuauclt file is not part of the Windows operating system. Wuauclt.exe is capable of interpret keystrokes. wuauclt.exe appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files.
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 wuauclt.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 wuauclt?
|ran a search in windows no such file |
|the size in my pc is 148kb |
|On one Windows XP system I used the Services to stop the Automatic Updates process but then it came back. Next I switched the AU service from Automatic to Manual and it still came back. Finally I changed AU from Manual to Disabled and stopped it again. Now I do not see it showing up. Don't know there was a virus but don't think so. Am running Windows Defender and it doesn't say there is a problem. (further information...) |
Summary: 149 users judge wuauclt.exe to be an essential file that should not be touched. 29 users consider it harmless. However, 62 users consider this to be a suspicious process and would like to get rid of it. For this reason, 91 users have already deleted wuauclt.exe. source: file.net
How to uninstall the program or Windows Update
To remove Windows Update 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 the program or Windows Update in the list of displayed applications.
- Click the program, and then click Uninstall.
How to tell if wuauclt.exe (Windows Update) 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 Windows Update. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Windows Update 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 wuauclt.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.