: It can load entire disk images into memory (RAM drives) to run an OS at higher speeds.

After the boot code has been written, you must manually copy the core Grub4DOS files to the target drive:

For best results on 64‑bit Windows, you can still run the installer as Administrator. If you encounter problems, alternative methods exist — see the “Troubleshooting” section below.

Ensure you are running the installer as an administrator.