I have a bit of a problem with a messed up windows 7 install and looking for someone with enough knowledge who might have come across this. A coworker had a laptop running windows 7 home premium. Since Home Premium does not allow joining of a domain, he upgraded to professional. Problem came when he let someone else do the upgrade. They installed instead of upgraded which placed his old windows install into a few "folder_name".old folders. Well this was unsatisfactory for him since now all his old program were inaccessible. He came to me and I said I would see what I could do. Well after searching I found I was able to rename the current "Windows", "Program files", "program data", etc folders to something else, and the .old folders back to original names, and run a few command line commands and was able to boot back up into his old Windows 7 Home Premium again. I then did an actual upgrade which left all his programs intact and upgraded him to professional. The problem is, after going through all this mess, something must have gotten jazzed because this computer is so unbelievably slow. Literally the boot is close to 10 min. Looking at the c:\ drives, I noticed now there are multiples of "Program files" "Program data" and a few others. launching and running simple programs takes forever. There is now CPU activity, no HDD acctivity, the computer just sits and sits, then does something, then sits and sits. Please, can anyone help me solve this issue. Reinstatement is a fear because he has some programs on there he needs but no longer has an install disk for them.