As many teenagers do, I have been on a few dirty websites. After viewing these sites, I delete the history and temporary Internet files. For Christmas, I am getting an HP laptop, and I'm giving my mom my computer that I have now. My aunt suggested to her that she gets someone to clean out all of the stuff on the computer. I'm afraid that this computer person will be able to tell her if I have been on dirty sites and such. Are people able to do this? If so, how can I cover up my tracks?

A tech person might in theory run disk recovery software and find bits & pieces of stuff you've browsed - I personally wouldn't worry about it because there's no reason they should do so. If you're really concerned, do a clean reinstall of your operating system - that will wipe anything out.

If someone were to run a system restore, your internet temp files would probably be recovered, if someone were to do that

Anyway, clean your info and then right click on c: drive in explorer and choose disk cleanup and choose clean all files

When that finishes it's search, click on the more options tab and choose delete system restore points and say OK

This will delete all restore points except for the last one made

Then defrag your drive

This is just extra steps but if you delete all your info you should be fine

Try ATF cleaner and CCleaner