I installed Ubuntu on a system that has Windows 10 installed. I can boot to Windows or Ubuntu normally using GRUB. I want to delete Ubuntu partition, but first I must restore the Windows 10 MBR.
In Use Bootrec.exe in the Windows RE to troubleshoot startup issues (applies to Windows 7 and Windows Vista) they say to use Bootrec.exe with options
/FixBoot, but when I type "bootrec.exe /FixMbr" in a command prompt, Windows says:
'bootrec.exe' is not recognized as an internal or external command.
I say I can boot to Windows 10 and run a command prompt from there (I don't need to use an installation medium), but I don't know what to enter.