Aww, OK...
Restores ---> Tick
Backups ---> Tick
Ccleaner...You need to run it & see what it does.
Wallpaper uses memory as do unecessary screen icons.
Power saving, I've noticed that turning off monitor, Hard drive and putting the computer into stand by seems to create a lot of problems for people.
Cache & History, not much point in your browser seaching these when the page I'm going to load has changed anyway. Like every screen in the forums.
It's OK for when you use the 'Back' button.
I set mine on 10Mbs cache & 1 day History.
People would be well advised to set commonly frequented sites into their hosts file file for faster access.
I nearly forgot one!
Registry Cleaner---> Tick