A movable pointer on a black screen usually means the display works and Windows has reached part of the sign-in or desktop process.
Step-by-step checks
1. Wait for a delayed sign-in
Allow a few minutes after an update, then press Ctrl + Alt + Delete. Avoid interrupting an update repeatedly.
2. Restart Windows Explorer
If Task Manager opens, look for Windows Explorer and restart it. If it is absent, use Run new task and enter explorer.exe.
3. Disconnect extra displays
Remove docks and external screens, then use Windows + P to return to the PC screen if the keyboard responds.
4. Use Safe Mode only when needed
Enter Windows Recovery and Safe Mode if normal restart still fails. Note recent display-driver, startup-app or update changes.
5. Protect data before recovery
Back up important files before uninstalling updates, using System Restore, resetting Windows or reinstalling.
When to stop
Stop if BitLocker requests an unavailable recovery key, the drive makes abnormal sounds, Windows recovery cannot see the drive, or the device contains irreplaceable unbacked-up data.
What to tell an expert
Share the device model, operating system, exact symptom or error, when it began, what changed beforehand, and which checks you completed. Do not send passwords, one-time codes, encryption recovery keys, or unnecessary personal files.
Official reference
This Supportia guide was prepared with current official guidance as a factual baseline. Interface names can still vary by device and version. Open the official reference.
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