Fix: Default Printer Keeps Changing Windows

In Windows, your default printer may revert back each time you login. Your printer might revert back to Adobe PDF or XPS file.

The cause is a corrupt NTUser.dat file. Fine this file in the following location. This file is hidden so you might need to make all files visible in Windows (Open Windows Explorer -> Organize -> Folder & Search Options -> uncheck hide protected system files)


The NTUSER.DAT file contains personal preferences and settings for a user. Deleting this file will also delete other things including desktop customizations and browsing histories.

After deleting NTUSER.DAT file log back into Windows and set your new default printer.