Whether this was a serious question or not,every time I read it, I come up with the same answer,"how did you keep your data with previous OS upgrades?"
I'm afraid that for all too many people, some even reading this forum, that is a legitimate question.
Of course the age old answer is, "you back up your data to an external device, either a Flash Drive, External Hard Drive or a DVD if you have one. And every time your data changes, you update your backups.
I do this in just seconds, by running a batch file, using XCOPY, to back up only files that are new or files that have been changed, like my car maintenance spreadsheet. It's quick, simple and I've never lost one bit of data, in decades.
Cheers Mates!
TM