Vote buying is legal now. Elon did it the last two elections.
But also, that's not what she is doing. She is using campaign funds to have dinners (legal) and then asking attendees to bring items to donate and then giving those items to other needy people. None of that would be illegal even if we were still a country of laws.
Once updates end in October, Windows 10 won't be secure and probably shouldn't be allowed to connect to the internet. It will still continue to function though. You can buy a year of extended support for Windows 10 for $30, but it's unclear whether there will be support after that.
Probably best to start switching to something else, or plan to run that PC offline.
Toothpicks work great. They are wood or plastic so they won't conduct electricity.