Windows · System

Prevent restarts during your work hours

Lets you define a time window during which Windows will avoid automatically restarting the PC to install updates, ensuring you're not interrupted during typical working or usage hours.

How to open Active Hours

  1. Open Settings → Windows Update → Advanced options
  2. Click 'Active hours'
  3. Toggle automatic adjustment, or manually set start and end times
  4. Save the changes to apply the new restart-avoidance window

What you should know

  • Set a start and end time for your active hours window
  • Choose automatic adjustment based on your actual usage patterns
  • Restarts for updates are scheduled outside this window when possible
  • Maximum active hours span is limited to a set number of hours

Why it matters

Active Hours prevents one of the most disruptive experiences in Windows: an automatic restart for updates happening in the middle of active work, a presentation, or a video call. By defining when you typically use the PC, Windows schedules restarts for update installation outside that window instead, usually overnight or during other low-usage periods. This is especially valuable for anyone with an irregular but predictable schedule where the default active hours window doesn't match actual usage patterns.

Best practices

  • Set active hours to cover your actual typical usage window, including any evening use
  • Enable automatic adjustment if your schedule varies day to day and you want Windows to learn it
  • Extend active hours before a known busy day or important presentation
  • Combine with Pause Updates for guaranteed protection during critical events beyond the active hours limit

Common problems and fixes

PC still restarted during active hours
Confirm the active hours window was saved correctly and covers the actual time; a pending restart may also force through if delayed too long.
Can't extend active hours far enough
Active hours have a maximum span; use Pause Updates for longer protection windows beyond that limit.
Automatic adjustment doesn't match my schedule
Switch to manually setting active hours if the automatic detection isn't tracking your usage accurately.

Tips and tricks

  • Turn on automatic active hours adjustment for a few weeks to let Windows learn your real pattern before customizing manually
  • Check active hours the night before an important all-day event and extend if needed

Frequently asked questions

Does this stop updates from downloading?

No, updates still download in the background; active hours only prevents automatic restarts during that window.

What happens if a restart is needed but active hours never has a gap?

Windows will eventually prompt for or force a restart if it's been delayed too long, even during active hours, to ensure the device stays updated.

Is there a maximum active hours range?

Yes, there's a capped maximum span; for full protection during a longer event, use Pause Updates instead.

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