Clean Install is mess up. I had also done Clean Install of Win 7 64 & the main drive C was showing app. 90 GB that too after I removed the .old backup through Disk Cleanup & C drive had few data from previous install too.

Later I did format & install from the installation itself going to advanced options & it was superb. The main drive C was showing 15 GB full & none of the previous craps were there.

System running fine & no probs at all.

Thanxx
Naren