Looks like I'm gonna go down the harder route! Lol windows 10 reinstalled and the basic stuff installed, will do some testing over the next few days and see how it goes. If all good, then at least I know it's either windows 11 or the bios and not something else that has happened that I don't know know about.
Not too fussed about upgrading to a 5800x3d at the mo.
My other problem is my Xbox not starting all the time. All these problems come at once!