Great example of why a safety net is required.

Yes hopefully the “base” setup works once you installed it, hopefully manage through some updates, some even tinkerings… but what happens when it break?

Windows (despite all the criticism, and I’m one of the first to complain about Microsoft the corporation) usually has been fallback mechanisms. It can usually rollback an update. It usually has a hidden recovery partition. It usually has an alternative medium to recover (e.g. USB stick, CD-ROM back in the days, etc).

So… you genuinely did try to help your mother but do not give up. Try instead to provide a better safety net so that she is genuinely safer. In fact I would recommend testing it together, make it a learning adventure. One way to do so would be to go there, help her fix it… then botcher the setup together! Delete system files, etc, then try again. Obviously the 1st step is insuring her own data (e.g. family photo, documents, etc) is safe.

While doing so, you might also want to setup up remote control, or not. Anyway a LOT of things to genuinely discover together.

IMHO if you do do it, she will not only appreciate the effort but assuming you do manage, she’ll have a new sense of pride, both in you but also herself and share the experience with her friends. This in turn might bring more people in!