1. I'm using the CLC. 2. It takes about 7 and a half hours to complete, going really fast in the beginning(1.8 to 3) then slowing down and moderating(6.95 to 7.5).
3. I have been able to turn it off before and continue the WU later. I don't own the comp so I don't designate the times. Driver and Spy being used. I use a 933 p3 with an i815 motherboard, a 200w power supply, 30 gig hd, 512 megs of pc133 ram, generic. No oc yet. No stability issues that I know of. It has been able before to continue normally if turned on normally. No sudden resets that I know of, got a surge protector.