Here's what you need: 1. You need to disable UEFI whitelisting or enable legacy mode. I don't know much about this step, and I suspect others here are in the same position, as this is only specific to recent UEFI computers.
2. GRUB is best installed in the Master Boot Record. 3. If you want to remove Trisquel and revert to Windows-only, you will need to boot from your Windows 8.1 disc to restore the MBR, or manually restore it if you kept a copy. If you don't have a Windows 8.1 disc, well, there is nothing you can do. > Making a mess in boot loader is pretty serious issue and I hope you > Trisquel guys will address this issue. GNU/Linux distros like Debian, Ubuntu, Trisquel etc. all install GRUB in the MBR, same as Windows. If you can't restore your MBR to use the Windows bootloader, this is in fact a Microsoft issue, not a Trisquel issue. Andrew.
