What files can I delete in my computer that aren't needed, as in maybe what the computer comes with.

Its not that my computer is running slow, or that I am running out of space, I just want to make sure I don't have files in my computer that I don't need.

Sorry if I worded this very weird, lol I'm not sure how to explain what I mean.

Thank you!

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You could go into (If you have a PC) your start>control panel>add/remove programs and remove any that you don't use anymore? Be aware if windows warns you that "if you delete this program it will mess stuff up" then don't haha... go for programs you know you don't use anymore that you had put there.
You could also go and delete your cookies or into your downloads folder and get rid of anything from there you don't need, like installers and zip folders... Sorry if you have a mac I'm not sure how to go about clearing stuff up then =/
You can also defragment your computer and run a virus scan just in case, avast anti virus is free to download and it's really good for a free program!

Thank you guys so much! This actually helped a lot.
Haha, and no worries no mac, just a dell.

:) thank you thank you!

And happy thanksgiving all.