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Blue screen or computer won't start? What to do and what to tell us

A blue screen or a computer that won't start is stressful. What to try, and the details that help us fix it fast.

A blue screen, also called a stop error, means Windows hit a problem it couldn't recover from and restarted. A one-off isn't usually serious. If it keeps happening, or your computer won't start, we need to know.

Blue screen

  1. Take a photo of the screen with your phone before it restarts. The stop code on it helps us find the cause.
  2. Let it restart, then save your work.
  3. Think about what changed: a new device plugged in, an update or new software.

Computer won't start

  • Check the power. Plug in the charger and check the lights on the charger and the laptop.
  • Hold the power button for 10 seconds to switch it fully off, then press it again.
  • Unplug everything else, including the dock, USB drives and external screens, then try again.

Still not working? Call us on 707-755-8000. Tell us what you see on screen and when it started. Files saved in OneDrive and SharePoint are safe in the cloud.

More detail

Microsoft: Troubleshooting Windows unexpected restarts and stop code errors
Last checked against these sources:
November 11, 2026

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