Now how the hell do I switch DEP back on?

Execute Disable bit 'Enabled'
Bootini changed back to 'optin'

run nxtest, and it still tells me DEP is not activated.
Seems to get a positive out of nxtest you need to use 'AlwaysOn' instead of 'OptIn'. However this causes all sorts of conflicts in XP.

Back to sort of on.

RLM