Software can be just as expensive sometimes, and if you've looked into Windows 11 Pro, you'll know it costs a whopping $200 ...
To set this up, download or create the Windows 11 ISO as explained above. Next, install Rufus and launch the program. Insert a USB stick that has at least 8GB of free space into your PC.
TL;DR: Breathe new life into an old PC with a license to Microsoft Windows 11 Pro, now just $14.97 (reg. $199) through March ...