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This issue has been bugging me for MONTHS and I finally found a fix today!! I managed to narrow it down thanks to this thread plus this other one : https://answers.microsoft.com/en-us/windows/forum/all/memory-integrity-cannot-be-turned-on/d70bd05f-0f00-40a5-9d68-cdd963b174fc?page=5
I started by listing the drivers using the following command (needs to be done as an administrator) :
dism /online /get-drivers /format:table
Then I used this other command when I wanted to uninstall one:
pnputil /delete-driver <Published Name> /uninstall /force
I focused on the Dell drivers as they were mentioned in this conversation:
- dellinstrumentation.inf - there was multiple of them, so I uninstalled Support Assist and used the command on the drivers, but that did not change anything.
- dddriver64dcsa.inf - THAT WAS THE ONE! Once uninstalled, no more errors and I managed to turn on the memory integrity.
I hope this will help some people.