Hi Doktornotor,
2+2 = 4 but not always. You mentioned the dreaded word BIOS! The same day that my problem started with the Virtual Machine there was a large BIOS update. Is it possible (I didn’t connect the dots before) that this could have caused the problem and not the security download within XP Mode? BIOS is beyond my scope of expertise and am scared to go there.

Toni xx