The launcher closes or shows an error

Keep the exact error message

A screenshot of the complete error is more useful than simply saying “it doesn’t work”.

1. Note whether the error appears when opening Atlas, signing in or starting RedLine.
2. Capture the error window and its text, hiding any personal information.
3. Quit Atlas, including its notification-area icon if present, then open it again.
4. If the problem returns, include the details you gathered in a ticket in your Atlas account.

If you can still open settings

For a display problem, “Settings”, then “Advanced” lets you reset interface preferences. You will be asked to confirm before these settings return to their defaults.

Do not disable Windows protection or install a build found on a third-party website.