Reinstalling Windows 10 - Impact on Games etc?

[regis9 4,020]

Hello, so I have another thread going in the forums on a possible CPU upgrade.  Given that it looks like going from Intel to AMD will require a reinstall of windows 10 I’m trying to figure out if it’s possible to do the reinstall without impacting installed games, save games, mods, not to mention documents, pictures etc.  Googling hasn’t really returned a lot of useful information oddly enough.

I keep my C:\ drive pretty much exclusively for the O/S and not much else.  With that I mind, if I reinstall the O/S will it largely leave the other drives alone?  Most (but not all) of my games are through Steam.

Thanks for any help.  I want to do the upgrade but am dreading the thought of having to back everything up and reinstall.

[Luis Hernandez 571]

I only tried reinstalling Windows due to an OS failure. I never changed CPUs or anything as critical. While MSFS worked flawlessly (just point to the MSFS folder I already had), I had to reinstall P3D v5.3 from scratch.

Remark: I didn't have to reinstall MSFS, but I did have to reinstall Steam. I don't remember if I had to reinstall FSUIPC or Fenix (the only non-Marketplace MSFS addons I had back then).