Need some information. I read through all 7 pages of another similar post and did not see my situation. I was asked to start a new post as follows: I have Win7 Home Edition without SP1 pre-installed on a ZT Desktop PC (purchased from Costco). I have been getting a number of BSODs at different times since it was purchased about 2 yrs ago, but have just lived with it during that time. The BSOD frequency is about 2 or 3 times per week. The ZT tech support (in New Delhli) folks have no answers other than reformat and reinstall Windows. I attempted to use Fred Langa's method of reinstall-upgrade but the OEM Recovery DVD that came with the computer does not offer me the choice for upgrading. The setup just proceeds to download the files when I click on "Install". It also does not offer me the option to "get updated file from the internet". It just starts installing. Well, I immediately cancelled out. There was one screen that did appear that showed two partitions. C: (OS) and another smaller partition for System files. Does that mean I can not use the Fred's method? Please advise. PS: I also have an unused Windows 7 Upgrade package purchased a while back that does not have SP1 included. Would this be helpful to me in any way to do Fred's method of reinstall-upgrade? Any assistance is most appreciated.