Hello ! I want to ask some question about my laptop on C drive that it is not enough disk space and can not install new update from Microsoft.But I want to use my old window vista.I had a whole window backup from C drive.Do you think can I install it on a new hard drive and new partition on another drive.Please help !

Are you saying you are backup windows onto your C: drive?

Either way it's time you did some house keeping and moved data OFF C:

Yes,sure.I mean I had a full backup from C: drive that can I install on other HDD and new partition. Have you tried it before.