I upgraded from Windows 7 to Windows 10 recently, and I have yet to create a recovery/repair disc. Stupidly, I changed some BIOS settings on my PC, not realizing it would mess with Windows. I can no longer boot into Windows, as it gives me the Boot Manager error in which winload.exe is corrupted and it tells me to use the installation disc my OS came with to repair it. Unfortunately, due to my upgrading to Windows 10, my Windows 7 installation disc does not work. I was wondering if there was a way to purchase a Windows 10 repair disc, or if there are any other ways of repairing windows. Thanks.