Use one small, visible setting to investigate persistence. A different Windows account, an imported XML file, or organization-managed configuration can make a change appear to disappear. Compare the same user and the same settings dialog before changing permissions.
What to do
- Note the signed-in Windows account and the Open-Shell version. Avoid alternating between an administrator account and the account that normally uses the menu.
- Change one reversible preference, apply it with OK, and reopen the settings dialog immediately. Record whether it is already lost or disappears only after sign-in.
- Save a new XML export and keep the older export separately. Check whether a startup script, restore operation, or management policy reloads a previous configuration.
- Reproduce the issue with a built-in style and no automatic import. In a managed environment, ask the administrator to review policy rather than editing registry permissions.
Check the result
Compare the chosen setting immediately, after closing the settings dialog, and after the next sign-in. This separates an apply failure from a later overwrite.
Limits & precautions
Running the settings dialog as another user can test a different profile instead of repairing the original one. Do not grant broad write permissions to Windows or Program Files.
Questions & answers
Does XML automatically save every change?
No. Treat an exported XML file as a snapshot and make a new export after changes you want to retain.
Can a managed configuration overwrite preferences?
A managed environment may apply configuration. Ask the administrator before trying to bypass it.
Sources & scope
Documentation checked October 30, 2026. These instructions are documentation-led, not a claim of hands-on testing on your Windows build.