Dual boot into Windows 11 from an SD card on your Steam Deck with my straightforward guide and play games otherwise unavailable on SteamOS.

Select “Install Ubuntu alongside Windows Boot Manager” and click Next. Any other option will either delete the entire contents of the drive, or require manual configuration, so take great care.

Check this comprehensive guide and learn how to install Windows on your Steam Deck via external and internal drives.

Ready to leave Windows 10 behind? We break down the easiest ways to download, install, and upgrade to Windows 11 for free.

I was also able to boot to a GRUB setup on my flash drive, but I wasn't able to get the Windows 7 installation to start with that either, mostly because I have no idea how it works.