Grubinst-gui.exe: Download //free\\

Right-click grubinst-gui.exe and select . This is non-negotiable; without admin rights, the tool cannot write to the MBR.

timeout 2 default 0

: Launch Windows Command Prompt as admin and clear the target disk using the diskpart utility via the clean parameter. Alternatively, pass the --skip-mbr-test argument through the command terminal. Modern Alternatives to Grubinst-GUI

Select the disk (e.g., (hd0) for the first hard drive, (hd1) for a USB drive). Be very careful here ; choosing the wrong disk can render your system unbootable.