
Note: Before you install Windows 10, check to make sure your PC meets the To create installation media to install Windows 10 on a different PC, see Using the tool to create installation media (USB flash drive, DVD, or ISO file) to install Windows 10 on a different PC section below. If you are installing Windows 10 on a PC running Windows XP or Windows Vista, or if you need
You need to reinstall Windows 10 on a PC you’ve already successfully activated Windows 10. You have a license to install Windows 10 and are upgrading this PC from Windows 7 or Windows.
I believe this information is not present elsewhere on this site, and hope that it may be useful to others who are contemplating using the Windows 10 reset feature.
The Public user profile ( C:\Users\Public) is NOT saved. Files stored directly in the users folder ( C:\Users) and not in a specific user profile are NOT saved. Windows will make a list of programs removed and put it on the Desktop for you after the reset. This is expected because Windows says "apps" are removed. Files in Program Files, Program Files (x86), ProgramData, and Windows are NOT saved. Despite being in your user profile, AppData is wiped ( C:\Users\YourName\AppData). That is, files in C:\ (if C is your system drive) and sub-folders that you created there are safe.
It doesn't have to be in a sub-folder ( Documents, Pictures, etc) as files saved directly in the profile folder are saved as well.
Files in your user profile folder ( C:\Users\YourName) are saved as expected. You can recover files from this directory after the reset. NOTE: Files that are not saved are moved to the C:\Windows.old directory. The results were mostly what I expected, except files saved to the system drive by the user did remain (even though they weren't in the user profile). I put TEST.txt files in various directories beforehand to see which remained after the reset. Since I could not find the information I was looking for, I did a reset and performed an experiment of my own.