Power users waste hours reconfiguring privacy settings after every major Windows update. Existing tools don't preserve settings between installations.
Build a lightweight tool that snapshots privacy configurations (registry keys, group policies) to a cloud-synced or exportable format. Version history would let users roll back changes.
Security professionals and privacy-focused individuals would pay a one-time fee for reliable configuration persistence.
MVP could be a PowerShell module that exports/imports the most common privacy-related registry keys.
The risk is Microsoft breaking compatibility, requiring constant maintenance to keep up with OS changes.