Actually, this does remind me of one annoyance with Win8: it seems to me that if your PC was switched off when the maintenance was scheduled, it will perform the maintenance as soon as you switch it back on again -- which is annoying if you've switched it on to get on with something but are competing with the defender scans, or disk defragmenting, or backups, or whatever.

As a geek I'm not entirely comfortable with the PC deciding when to do stuff -- what's left for me to tinker with?

Herbie