When/Where to X out?

1. I first Delete Restore Points/Cleanup cookies, then clean (Av likes me to scan twice?- 2nd scan Much faster!?).

2. Then scan Registry Twice, and fix All. I then go back to main startup page, and X out, and Reboot twice

-My question, as I don't get long/cleaning reboot until After a cold startup, 4 Reboots, open IE11 (4 Times). shutdown.

- I must be doing something wrong?- Should I X out After Registry cleaning, or what?