Windows 7: WEI: Error: Failed to properly access the disk

Well this is a first for me!

I decided to run the WEI after updating all of my drivers and have received an error message here saying that the WEI could not be computed: “Could not measure storage performance. Error: Failed to properly asses the disk. The parameter is incorrect.”

Can anyone assist me in figuring out the cause of this conflict?



sfc/ scannow shows no conflicts. I will run a System Health Report and run the basic disk Error Checking.

Any assistance would be appreciated!

No one has seen this error before?

Such a general thing, hard to pinpoint a problem with what you've given. Ever mess with windows settings, services, anything like that? Have all windows important updates?

Read this (yes, all of it): Windows Experience Index error "Failed to properly assess the - Microsoft Answers

I've seen it. For me it wouldn't run becasue I had AppGuard's MBR protection enabled. After disabling the MBR protection, it completed

That link I posted mentioned an AV. try to temporarily disable it (and don't go getting yourself into trouble now) and see if anything improves.

Thanks Greg s! Appguard was my problem as well.

You're welcome ommon. Glad it helped