Find below in this post, a series of steps to you with fixing “the specified user does not have a valid profile” when opening apps such as Nvidia Experience or MSI Dragon Center etc.
- Check if you are Administrator
- If you are Administrator check if you only have an online account signed in.
- Go to settings->Email & Accounts
- Click on add an account
- If that did not work then go to settings->Your Info
- Then click on Sign in with a local account instead
Once you are logged into your new account(local) the errors should be resolved. Hope that this has helped!