Due to tightening security I can see where and why VXP will die if the Host OS is all patched up.

Just my thoughts about how EMS/LIM support was removed alone broke old DOS apps and now, more locking down of the OS holes.

Yes, I am reading https://www.google.com/search?q=Virtual+XP+stopped+working but there is no common answer other than to restore from backups and then other wipeouts and reinstalls.