Sorry for being so inactive.
tried that, error still occured.
trying startup repair as i'm writing this, tried starting without a keyboard even connected and still it occured...
Edit:
Tried startup repair, it just told me to disconnect any new hardware..
another thing i noticed is that when im about to choose operating system from the Windows cd, it says my main one is on my (F:) drive, but it's supposed to be on my (C:) drive. Can this be a factor why startup repair doesn't work?