another head scratching moment with the boy's computer today, which may or may not be connected to the previous stuff....
Today the machine suddenly announced that windows wasn't activated and that this was a different machine and it should be re-activated by buying a legitimate windows disk. Fortunately his machine had a legit bought disc and I re-activated it with the key on the issue disc.
the only reason I can think of for this to happen is that I had to change the bios boot regime from uefi to legacy in order to let grub do it's thing for the dual boot. If this is the reason I'm still wondering why windows took a week to notice things had changed.
these are strange times we live in.
Subjects that don't have their own home