If you don't want stupid "backstory" just start reading at the dashes.
My brother has been running a cracked copy of Windows 7 for a very long time. This autistically enrages me, and I want to force him off of being a proprietary software cuck.
He's expressed before that once he can't use Windows 7 any more, he won't be able to bear Windows 10, so he'll convert to Linux. I've convinced him to install it on a partition, but he doesn't really use it.
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He's been getting notifications recently saying that "Windows is not genuine," and his wallpaper is permanently black. He's a moderately tech-savvy guy, so how can I brick his Windows install without him getting suspicious.
The best case scenario would be for it to look like Windows had finally given out and forced him to buy a license, since he doesn't know that Windows 7 will run indefinitely without being licensed.