Index

All guides

One fault per guide. Each one works the checks in order, from the two-minute tests to the part swap the evidence points at.

• Fix a Windows 11 PC that won't boot

  Startup problems — the Windows Recovery Environment in order: Startup Repair, Safe Mode, restore points, and update removal.

• Diagnose a PC that randomly restarts or shuts down

  Stability — event log first, then heat, memory, and power, with drivers last.