So the title pretty much says it all...
I have a computer with 2 drives, a 256GB SSD and a 512GB HDD. I have my Windows 10 installation on the SSD and I partitioned the HDD to serve as my Ubuntu installation (I gave ubuntu like 80GB of space)
I wanted to remove it.
So I installed a recovery disk on a USB drive.
Deleted my ubuntu partition and extended the HDD volume.
Booted into the USB and started up command prompt.
Ran Bootrec /FixMBR (or bootrec.exe /fixmbr)
Rebooted and I get a Grub Rescue prompt.
I searched around the internet and found that apparently I should also run bootrec /fixboot... but anytime I try to do that, it gives me access denied.
I also followed this guide http://www.howto-connect.com/fix-bootrec-fixboot-access-denied-windows-10/
but I can't find an EFI folder in my C: drive (the one with my Windows OS on it)
What am I doing wrong? I've been at this for an 2 hours now and I don't understand how to fix this. I can't even just restore the windows OS or restore from a restore point because they give me errors like no windows installation found.
Btw this installation of windows 10 is one that I upgraded from Windows 8 so I have a Windows.old folder in my C: drive... not sure if that affects anything?