I want to know how to replace my windows 7 boot manager with Windows 10 boot manager. I have a windows 8 disc.
I had a dual boot setup with Windows 7 and 10, installed on separate partitions on the same disk. I never used Windows 10 so I must have done something a while back to prevent the 'select an operating system' during boot.
Anyway, the time has come where I'd like to use Windows 10 again. However, the windows 10 operating system did not appear in msconfig.
I downloaded visual BCD and gave it a try. I was able to add a boot loader for the win10 partition.
Now during boot, I have the option to choose an operating system (and win10 appears in msconfig). However, when I choose win10 I receive an error about the winload.exe (or was it bootload.exe) having an invalid certificate or something.
Now I've read that this can be caused by the win7 boot manager not recognizing the win10 loader. So somehow, my boot manager has reverted to the windows 7 version.
Does anyone have any advice on fixing this? I've been looking for an answer but nothing was clear..