Today i installed windows 7 64 bit using the custom install option. I had vista 32 bit before i installed windows seven so i thought the installation would do a clean installation and delete everything on my disk drive except the windows 7 os. But when it was done, i still had my old files labled windows.old. I wanted to do a clean install also so i could clear my disk space, but since i still have my old files in windows old, i still have the same amount of disk space i had with vista. Is there a way to do a clean install, or did i just do it wrong ? Any help or suggestions will be appreciated . Thanks!