Windows 10: PxHLpa64.sys Incompatible with Win 11 - can we delete that file? Otherwise, can't turn on...

Can't turn on Memory Integrity because of the PxHLpa64.sys file. What do we do? Can we uninstall that file safely?

:)

 

PxHLpa64.sys Incompatable with Win 11

I upgraded my HP Spectre laptop from Win 10 Pro to Win 11 Pro and everything worked perfectly except that Memory Integrity cannot be turned on due to a compatibility issue with PxHLpa64.sys. I've looked at the online solutions for removing this driver and have been unsuccessful at doing so. The last thing I tried was running Autoruns.exe as administrator; the driver was found, but I could not delete it.

I cannot find any device on my laptop that uses this driver. Is there a way to safely delete it?

Thanks, John

 

New PC has PxHlpa64.sys driver incompatible with Win11 Memory Integrity feature

Jay,

From an Admin Command Prompt, run:

• reg export "HKLM\SYSTEM\CurrentControlSet\Services\PxHlpa64" C:\PxHlpa64.reg
  

You should see the message "The operation completed successfully."

Then, run these two commands:

• sc.exe delete PxHlpa64
  

• ren C:\WINDOWS\system32\drivers\PxHlpa64.sys PxHlpa64.sys.old
  

Restart Windows. See if you can enable Memory Integrity.

 

Windows 11 memory integrity pxhlpa64.sys (DVD driver)

I had two machines that had Memory Integrity problems.

There were about 4 or 5 files allegedly causing this problem.

I the Uninstalled KB5017026 update, and this cured the error.