I have installed too many versions of windows and dont know where/how to delete them. Cant use computer as C drive is full. Bought Sony PC with Windows 7 then downloaded Windows 8 didnt like it and then downloaded a trial version of Windows 7 - Help!
Hi. Use the discs that came with your PC and do a factory restore (dont forget to back up all your data first). If you did not get any discs with it there should be in Start / All Programs a Sony program to make restore discs
Go to start all programs accessories "run" in the run box type msconfig select the boot tab . There should be list of the OS versions that you have installed.You can try to delete them here at your own risk and reboot , clean install with format of 7 would be my choice though.