I want to have a clean install of windows 7. I have many important files in my current Win7 OS (desktop, docs, C:\download..)Is it okay to let it install with doing any backup and use the "windows.old" created by Win7? Does the windows.old backup my C:\ 's files? Anybody mind to list all the directory back up by windows.old? If windows.old is not a good solution, is there any backup solution besides than transferring the files i want 1 by 1 to my external hard drive?