Question Windows Experience Index error "Failed to properly assess the disk. The parameter is incorrect"

[Gorrillasnot]

hello,

I did a fresh install of windows 7, installed all my drivers and apps, then ran the Windows Experience Index with no problem.
I then installed all the important security updates through windows update, ran CCleaner and shutdown the PC for the night.
The next day I tried re running the assessment and I got the "Failed to properly assess the disk. The parameter is incorrect" error.
When I first ran the assessment and it was successful I had only 1 m.2 nvme hard drive installed. The next day I installed my 2 internal and 1 eSATA regular storage drives, so I'm not sure if the additional drives being installed is causing the problem or maybe 1 of the windows updates or CCleaner is causing the error.
I did some searching and tried the suggestion of deleting the files in %windir%\Performance\WinSAT\DataStore which didn't help.
Another suggestion said to change the location of the temp and TMP directories in Advanced system settings, environment variables to C:\Users\"My User Name"\AppData\Local\Temp which did not help either.
I also looked through all of the suggested windows updates and didnt see any related to windows experience index.

Any ideas on how to fix this?

thanks

 

[Gorrillasnot]

After some more research and tinkering it appears the issue is with AVG.
I tried running WEI with AVG disabled, but it still failed. I then completely uninstalled AVG and WEI ran perfect.
From my research there is a driver AVG installs called AVGArDisk.sys that is causing the problem. It has been reported to AVG by several users and they haven't released any solution
The easy answer would be to use a different AV program, but I have used AVG for so long I hate to change.
Hopefully they fix it in the near future,.

 

[mxnerd]

What did you get by running Windows Experience Index? Absolutely nothing.

 

[UsandThem]

What did you get by running Windows Experience Index? Absolutely nothing.

Say it again, y'all.

The easy answer would be to use a different AV program, but I have used AVG for so long I hate to change.
Hopefully they fix it in the near future,.

There are several choices that are lighter on system resources than AVG if you decide to switch. Norton, Bitdefender, and Kaspersky to name a few: https://www.av-test.org/en/antivirus/home-windows/

Bidefender even offers a free version of their anitvirus program that is pretty good, however it's pretty limited in configurable options by the user.