Sounds like Windows 10's "Fresh Start" feature. https://www.microsoft.com/en-us/software-download/windows10startfresh https://www.microsoft.com/en-us/software-d

Sounds like Windows 10's "Fresh Start" feature. https://www.microsoft.com/en-us/software-download/windows10startfresh https://www.microsoft.com/en-us/software-download/windows10s... I could easily imagine someone stumbling onto this and running it. (Windows Security -> Device perf & health -> Fresh Start).