I don't remember exact message on my my devices, but it wasn't "...can't be turned on".
On my case it advice/remain to turn on that feature.
Check this reply for ATI drivers (maybe not work with Windows 11 drivers?)
memory integrity incompatibility - Microsoft Community
Maybe we should leave this issue in this thread as being OT.
Already checking, I cleaned up the AMD drivers, now I hope I can find some compatible with Memory Integrity. π
Got this one from W.U. we'll see if it is compatible?
Still the same issue. π