System unable to sleep after update
4.5
The "Sleep" option is missing, or the PC wakes up immediately after sleeping.
Symptoms
- No sleep in Start menu
- PC wakes up in 2 seconds
- Screen stays on
Possible Causes
- Display driver reset
- Wake timers enabled by update
- Power plan reset
Step-by-Step Fix
1
Update Graphics Driver
If Windows installed a generic driver, the "Sleep" feature will be disabled.
2
Run Power Troubleshooter
Settings > Troubleshoot > Additional troubleshooters > Power.
3
Check Wake Requests
Run "powercfg /requests" to see what is blocking sleep.
When to See a Technician
Updates often reset power plans to "Balanced", which may have different sleep settings than your custom plan.
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