I formatted my Ubuntu partition, but my computer still boots to GNU GRUB. I tried creating a windows recovery thingy on a USB stick and using bootrec.exe /fixmbr and variants thereof, all of which said "Operation completed successfully", but I'm still booting to GNU GRUB. Is there a different command I need to use?
I'm using Windows 10.
Windows is available if I can get to the boot selection and it boots fine, but I want to uninstall Ubuntu completely.
Alternatively; I deleted Ubuntu because I wanted to downgrade to 15.04. If I installed Ubuntu again, would it break anything or would the boot boot me into Ubuntu instead of GRUB? It seems risky which is why I haven't tried.
EDIT: important note: I'm booting to GRUB, not GRUB rescue.