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What does the netfxupdate.exe file do?

The netfxupdate.exe process is also known as UpdateUtil Application or, as the case may be, NetFxUpdate Application and is a part of UpdateUtil Application or, as the case may be, Microsoft .NET Framework. This software is produced by Microsoft (www.microsoft.com). An obsolete or defective version of netfxupdate.exe can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about netfxupdate.exe UpdateUtil Application

netfxupdate.exe is not a Windows system file and is known to frequently cause computer problems. Netfxupdate.exe is found in a subdirectory of C:\Windows. Frequently occurring are file sizes such as 106,496 bytes (80% of all these files) or, as the case may be, 73,728 bytes.
The file is no part of Microsoft Windows. When Windows starts, this process is automatically started at the same time (Registry: MACHINE\Run, MACHINE\RunOnce). It is interesting to note that the file is placed in the Windows folder, even though it is not part of the operating system. This process does not have a visible window, and does not appear on the taskbar. For this reason, 40% 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 netfxupdate.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 netfxupdate?

part of a microsoft xp Windows\ServicePackFiles\i386
Doug Gifford
If located in C:\WINNT\Microsoft.NET\Framework\v1.1.4322 it is part of the MS.net Framework Application. I just installed an update and this file requested internet access immediately after installation
It is a valid file required for Microsoft NETframework 1.1 (further information...)
Emmanuel Kappa
Windows Vista blocks it on startup
Run Once follwing reboot after I installed .NET 1.1 security update 1. Looks like a key Microsoft component on the .NET 1.1 framework. Presumably not present if you went straight to .NET 2 or .NET 3

Summary: 2 users judge netfxupdate.exe to be an essential file that should not be touched. 4 users consider it harmless. However, 2 users consider this to be a suspicious process and would like to get rid of it. For this reason, one user has already deleted netfxupdate.exe. source: file.net

How to uninstall UpdateUtil Application or Microsoft .NET Framework

To remove UpdateUtil Application from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate UpdateUtil Application or Microsoft .NET Framework in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
netfxupdate.exe UpdateUtil Application fix

How to tell if netfxupdate.exe (UpdateUtil Application) 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 UpdateUtil Application. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for UpdateUtil Application 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 netfxupdate.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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