File Directory location where PIN is saved

I just finished setting up my wife's new laptop and then totally spaced the PIN that I used to setup her laptop. She is running Windows 10 Home edition. I am still logged on so I have access to Windows but I can't use the PIN reset function and I didn't get a chance to setup her Microsoft Account info, so I can't use that feature either.

I am looking for a file directory location where the PIN is saved. It has to be saved in an XML file or something like that.

Can anyone help direct me to that location?

Welcome to the forum.

I expect that PIN numbers are stored the same way login passwords are. Essentially they aren't stored at all. When a password is created the system does a mathematical operation on it and stores the result. When you login the same operation is done on the entered password and the results are compared. If they match you are logged in. The password itself isn't stored anywhere. This data is stored in the registry in a location that isn't normally accessible even to an elevated admin account. The details of how all this works are of course undocumented.

Storing PIN numbers in clear text would be a serious security risk.