Hi,

When Odoo starts to feel messy after experimenting with settings and accidentally deleting views, the safest way to reset is not to reinstall modules or restore an old backup. Reinstalling modules doesn’t guarantee a clean state, since many of your customizations and broken views remain in the database. Restoring a backup would bring back everything, including the errors and unwanted changes.

The cleanest and most reliable approach is to create a brand-new Odoo database with default settings and views, then re-import only the important data you want to keep. You can first export your master data, such as products, product variants, contacts, vendors, and pricelists, from the current database into CSV or Excel files. Once that’s done, set up a new database, configure it carefully from scratch, and then import back the exported records.

This method ensures you preserve valuable business data while discarding the messy configurations and deleted views. You’ll end up with a clean system, fresh defaults, and correctly structured information, without carrying over the problems from your first setup.

Hope it helps