diskerror

ok so i tried running steam and it gives me a diskerror that i don't have enough space or something (wich is total bs), i tried running LoL and it says i have to go check the logs or soemthing, i tried reinstalling both fo them but before even starting it gives me a downloaderror and i can't seem to delete files anymore to get some space since it says the file is damaged... is there a way to clean my whole disk without removing windows since i don't think we have like the disk to reinstall it?

is my disk corrupted or something? (this is a toshiba laptop from 2011 so no it's not physically dmaaged i think)

edit: ok i can't dl stuff anymore either, i'm gonna bring it to the store and let them fix it even tough it'll probably take the whole weekend and i have computer exam on monday :/

Closed on OP's request.

Hope your problems get resolved ;)