Turning off Windows watermark

[Corenat Rovarnus]

Did you legitimately acquire the Windows 10 operating system, but Microsuck disagrees? This guy used this one weird trick to remove that annoying activate windows watermark, microsoft HATES him!
https://windows101tricks.com/remove-activate-windows-10-watermark-permanently/

The registry one didn't work for me as the value was already 0, but the batch file did the job.

[Corenat Rovarnus]

Well the watermark kept coming back even after doing these, so eventually I figured I'd just "reactivate" Windows using HWIDGEN.

Backstory: I got Windows 7 through my university and then got the free upgrade to Windows 10. I then had to replace the CPU and motherboard for unrelated issues, and since Windows is bound to the motherboard Microsuck thought it was a different computer. I didn't feel like going through all the trouble to swap the old one back in and do the "out of box experience" stuff that would prevent this from happening so I just accepted the watermark for months....until I started recording game footage and it showed up in there.