Hey there, so I bought the HP p7- 1254 desktop about 1 or 2 years ago. It came with a AMD Hudson-D2 FCH motherboard for AMD APU processors. I want to buy a new AMD mobo so I can get a better processor for gaming. Seeing as how I'm replacing a AMD mobo for a better AMD mobo, will I be able to do a repair install of my Win7 without any problems or should I reformat my hdd and do a clean install? The reason why I want to do a repair install is because I believe my OS is a OEM and Im trying to figure out a way, if possible, to getting it to work with a new mobo. If there are no possible way I will have to buy Windows 7.