This message was posted on behalf of Intel Corporation
First of all let me tell you that this board is a bit old and went off support since 2013.
Now in regards to the supported OS unfortunately Windows 7 or 8.1 were never tested on this board and the most recent Microsoft OS tested is Windows Server 2008. You can check this on the following URL: https://www.intel.com/content/www/us/en/support/boards-and-kits/000007362.html
It means that you probably will be able to get it installed but you will face instability and definitely there won’t be available drivers.
If you have any further questions just let us know.