do i need to worry about what it deletes?
or is it idiot proof?

idk for sure what all the files it brings up are for and when it brings up a shitload, i dont have time to search and find out

so what should i do?

I've used it for a few years without any complications. I've never backed up the registry deletions, and I've been okay. You should be good.

i dont have time to search and find out

You mean you're too lazy? CCleaner erases exactly what it says it's erasing. The boxes are on the left, check what you want erased.

the name does not tell me if i need it or not

i dont know the name of every singe file on my computer and what theyre for.

http://i260.photobucket.com/albums/ii34/fatchad420/Untitled-8.jpg

It's as simple as it can get. Only you (through some sort of research, you lazy twat) can figure out what you need and don't need.

Never had an registry error since I'm using CCleaner. Pretty safe.

Never had a problem.

In fact, I'm going to run it now.