I suppose the extra thing I do is back everything up frequently, including the C drive.
So if it goes corrupt for any reason I can easily roll back a week. I don't keep every week though, because it doesn't change a lot. I tend to keep the one from immediately after a major upgrade then last week's and a random one from somewhere in between.
It helps that my C drive is just Windows and apps (compresses to about 25Gb so do-able to a USB stick but better to an external USB drive), and all data is on the D drive.
But then I have plenty of disk space and time to waste :-)
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