You can find your filesystem here: C:\Users\USERNAME-HERE\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState

Or with this: %AppData%\Local\Packages\CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc\LocalState

And yes, that seemingly random block of text is the same for everyone.