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AVGUI.exe consumes all available CPU cycles even when inactive
The script-based AVGUI.EXE is always active, consuming all available CPU cycles even when the UI is not active.
With AVG installed, a differential backup which took 6 minutes now takes 45 minutes to complete.
No device or directory scanning was scheduled nor active.
For common x86 architectures, suggest implementing a native machine-based language for Windows event messaging rather than relying on the Microsoft .NET Framework interpreter.
Is the secret to AVG's success the inability of its users to run programs?
Intel Pentium 4 CPU 2.40 GHz 1.5 GB of RAM
With AVG installed, a differential backup which took 6 minutes now takes 45 minutes to complete.
No device or directory scanning was scheduled nor active.
For common x86 architectures, suggest implementing a native machine-based language for Windows event messaging rather than relying on the Microsoft .NET Framework interpreter.
Is the secret to AVG's success the inability of its users to run programs?
Intel Pentium 4 CPU 2.40 GHz 1.5 GB of RAM
All Answers
Let's have a look at it together.
Please share the screenshot of your CPU usage page and the version of AVG you have installed.
Open AVG Internet Security -> Menu -> About -> check its version.
AVG About:
This will help us to proceed further. Thank you!
The GUI should not appear in the task list with a non-trivial CPU usage unless the user has requested that interface.
McAfee's has a very slow GUI application under XP also, however, internal methods don't use the slow, interpreted .NET compiled script.
To unistall AVG from my XP computer, I had to log in as Administrator in Safe Mode.
Competitor's Internet Security performs background scans and virus updates without exhausting the CPU.
I had to use Safe Mode to unistall AVG.
AVGUI useless on an Intel Pentium 4 CPU 2.40 GHz 1.5 GB of RAM.
If you've used AVG Clear to uninstall the program & if you reconsider, we'd suggest you to reinstall AVG & check if it consumes the same amount of CPU usage.
Please visit this link to download the appropriate setup file of AVG for Windows XP.
I used the main installer from the AVG website and have ended up with version 18.8.3071, UI version 1.0.134, and antivirus definitions from today. The copyright notice in the about box dates to 2017 so I guess the installer uses an old build if it detects Windows XP, and I found this page suggesting the same thing: https://www.avg.com/en-gb/windows-xp-antivirus#pc
Unfortunately, since this problem is so severe, it seems like AVG isn't actually usable any more for legacy Windows XP machines despite their claims - I doubt it will ever be fixed.
The accepted answer in this forum thread is not correct - there's a huge distinction between a process running and it consuming 100% of the CPU. As a software engineer myself it just looks broken.
Firstly, this is a very old post and we'd recommend you to write your own post if any help required.
Regarding the issue, since Microsoft has ended support for Windows XP, latest versions of AVG software is not compatible with Windows XP.
However, if you use Windows XP SP3, you can install and older version (18.8) with latest virus definitions.
This will protect your PC from latest threats but the latest features and program updates are not installed.
Make sure you do not have any other antivirus or firewall software installed on your PC.
Then uninstall AVG and install again to verify the CPU usage issue.