Quick answer
For a blank desktop, distinguish a display-output problem from a Windows shell that failed to appear. Use Windows recovery guidance and preserve your work where possible. If the problem followed a shell change, test with that customization disabled before applying wider repairs.
What matters for this task
A visible pointer, a working security screen, or a functioning Task Manager can help narrow the problem. None proves that StartAllBack is the cause. Avoid repeated forced power-offs when normal recovery controls remain accessible.
Steps to follow
- Check the monitor connection and display mode. Note whether you can see a pointer or the Ctrl + Alt + Del screen.
- If Task Manager is available, inspect Windows Explorer and restart it after saving work and avoiding active transfers. If absent, the Run new task route can start explorer.exe.
- Use the publisher’s emergency-disable guidance at sign-in when a shell customization is suspected.
- If normal access remains unavailable, use Microsoft’s recovery or Safe Mode instructions. Ensure you can obtain any required BitLocker recovery key before advanced recovery.
Verify the result
After access returns, verify Start, taskbar, and a folder window before re-enabling customization. Record whether disabling the tool changed the outcome.
Limits and rollback
Keep customization disabled until the cause is understood. Do not reset the PC or delete profiles merely to recover a preferred theme.
Questions about this task
Does a black screen prove the app is malicious?
No. Display, driver, session, and shell problems can have similar symptoms. Diagnose the specific case.
Should I force the PC off repeatedly?
Use accessible normal recovery controls first and follow the relevant Microsoft procedure when escalation is needed.
Primary sources
Publisher claims and Windows procedures are linked below. The comparison and diagnostic steps are editorial guidance, not a claim of hands-on Windows testing.
Windows 11 download · Review compatibility and the publisher’s license terms before installing.
Download for Windows 11 File source and installation notes