UPDATE 9-2-20 Has your Sims 3 game been affected by the recent pixilation issues?

If you try to set up a dual boot system on your computer with Windows 10, definitely produce a repair disc for your boot sector. I didn't get it to work last time I tried it, and I had a few dual boot systems in my life. I had to repair my whole boot partition afterwards in order to get Windows to start up again, fortunately without reinstall.

There's another way to have Linux completely on a separate disk and switch the boot partition every time you want to start Linux. That at least leaves the flaky Windows 10 untouched.