what the hell?

can anybody help me?

YES! There is lots of help on google but the SINGLE most IMPORTANT
step is to STOP using that computer.

When you delete something from a computer it is not actually
deleted, the place on the hard drive where it is stored is
simply marked as available for rewriting, and the CPU
will reuse that space for whatever it sees fit (sometimes at the
very next oppurtunity).

I will repeat what I said!!!

STOP USING THE COMPUTER NOW!!

When you search this problem on another computer
you will discover the details of what I am talking about.

HTH
Martin