Hi @Art Hansen ,
Welcome to Microsoft Q&A!
If you do a clean installation of Windows 10, the Visual Studio will be removed completely, which includes all Visual Studio installation files and environment settings.
For your requirement, I suggest you export installation configuration files to save the workload and component information: open your VS installer > More > Export configuration. Meanwhile, you can export your environment settings by launching your VS > Tools > Import and Export settings.
For your projects, it is by default saved to %USERPROFILE%\source\repos. You can go to Tools > Options > Projects and Solutions > Locations to find projects location.
I suggest you backup these files to an external location such as USB Thumb drive, onedrive or another PC before doing a fresh installation of Windows. You can later import these files on your machine.
Sincerely,
Anna
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