Yeah, sometimes M$ does get its knickers in a bit of a twist...
Normally, I can just use the CLI to wipe any files that aren't playing nicely when I want them to go.... Albeit I generally have to run the CLI as an Administrative account - I just use a 'standard' level account to stop any nasties being any nastier than they have to be...
Glad to have been of assistance...!
(Just bear in mind what I was saying about data that isn't backed up...)
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I've seen the light... It was green, flashy and attached to a Network Interface Card...
Whenever someone says "You can't miss it" I invariably do...