Laptop power & battery

Laptop won't turn on after a Windows or macOS update

A failed or interrupted update is one of the most common reasons a laptop won't boot right afterward, and there are usually built-in recovery options before anything is truly lost.

Difficulty
Moderate
Time
30–120 minutes
DIY cost
$0
Pro cost
$80–$200

Symptoms

  • Laptop was working, then went unresponsive during or right after an update
  • Screen shows an update progress screen that's frozen
  • Laptop restarts in a loop after the update
  • Black screen with no response after the update finished installing

Likely causes

  • CommonUpdate process interrupted, corrupting system filesA power loss or forced shutdown during an update is the most common cause.
  • CommonDriver incompatibility introduced by the updateA new update can conflict with an existing driver, especially graphics drivers.
  • PossibleUpdate genuinely still installing and appears frozenSome updates take much longer than expected, especially on older or slower storage.
  • Less commonStorage drive issue exposed or worsened by the updateMore likely if the drive was already showing signs of trouble before the update.

What to do

  1. Leave it alone for at least 30–60 minutes if it shows an update progress screen, since forcing a shutdown mid-update can make things worse.
  2. If truly frozen with no progress for over an hour, hold the power button for 15–30 seconds to force a restart.
  3. Try booting into safe mode or recovery mode (both OSes have documented key combinations for this).
  4. Use built-in recovery tools to roll back the update if the system can boot into a recovery environment.
  5. Ensure the charger is connected throughout the entire process so it doesn't run out of battery mid-repair.
  6. If recovery mode also fails to load, this may require a technician's tools to repair the system files.

Tools and parts

  • None required

When to call a pro

If recovery mode won't load or repeated attempts to boot fail, a technician can use professional tools to repair or reinstall the system without losing your files where possible.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.