Sims 3 resets config. And closes?

I've been playing The Sims 3 + all expansions at medium video config. For 5 months very well. About 2 weeks ago TS3 restarted all config. (audio, video, gameplay etc) to default everytime I start it, then lags more than the game used to, and crashes, sometimes blue screen appearing. What should I do?
(also Minecraft with mods started lagging a lot.)

Guest

You might need to upgrade whatever you're using, otherwise, try clearing up some space on your hard drive by deleting any photos, videos etc. Even try moving some files onto a USB (that's what I do)

Fallobt