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Naimul Karim
Naimul Karim

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How I Fixed Windows 11 Sleep Not Working by Tracking Down a Hidden WebView2 Video Wake Lock

#hardware #microsoft #software

Have you ever configured your Windows laptop to sleep after a few minutes of inactivity, only to find the screen never turns off?

I recently ran into this issue on my Dell Inspiron 16 running Windows 11 Pro, and after hours of troubleshooting, I discovered the culprit wasn't Windows itself—it was an application using Microsoft Edge WebView2.

Here's how I diagnosed and fixed it.

🖥️ The Problem

My power settings were configured correctly:

  • Display turns off after 3 minutes
  • Sleep after 3 minutes
  • Hibernate enabled

Despite that, the laptop would remain awake indefinitely. The display never turned off, and the system never entered sleep.

🔍 Step 1: Check for Power Requests

Windows includes a built-in command that tells you what's preventing your computer from sleeping.

Open Command Prompt as Administrator and run:

powercfg /requests
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The output looked something like this:

DISPLAY:
[PROCESS] msedgewebview2.exe
Video Wake Lock
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The important part was Video Wake Lock.

A Video Wake Lock tells Windows that media playback is active, so Windows intentionally keeps the display awake.

🔎 Step 2: Find Which Application Owns WebView2

Many Windows applications use Microsoft Edge WebView2, so simply seeing msedgewebview2.exe doesn't tell you which application is responsible.

I used PowerShell to identify the parent process for each WebView2 instance:

Get-CimInstance Win32_Process |
Where-Object {$_.Name -eq "msedgewebview2.exe"} |
Select-Object ProcessId, ParentProcessId,
@{
    Name="Host"
    Expression={
        (Get-CimInstance Win32_Process -Filter "ProcessId=$($_.ParentProcessId)").Name
    }
} | Sort-Object Host
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The output revealed several applications using WebView2:

  • Widgets.exe
  • Microsoft Teams
  • SearchHost.exe
  • Visual Studio (devenv.exe)
  • PCAppStore.exe

At this point I still didn't know which one was preventing sleep.

🧪 Step 3: Eliminate Processes One by One

I terminated each host process individually and checked the power requests again.

Stop-Process -Id <PID> -Force
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After each process was stopped, I reran:

powercfg /requests
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When I terminated PCAppStore.exe, the output immediately changed to:

DISPLAY:
None.
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🎉 That was the smoking gun.

PCAppStore.exe was holding a Video Wake Lock through WebView2, preventing Windows from turning off the display or entering sleep.

💻 Step 4: Verify Sleep Support

To ensure there wasn't a hardware limitation, I checked the supported sleep states:

powercfg /a
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The output showed:

Standby (S0 Low Power Idle)
Hibernate
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This means the laptop uses Modern Standby (S0) rather than the traditional S3 Sleep.

Modern Standby is more sensitive to applications requesting wake locks, making powercfg /requests an essential troubleshooting tool.

✅ Step 5: Fix the Root Cause

Once I identified the offending application, the fix was straightforward:

  • Disable the application from Startup
  • Close it when not needed
  • Uninstall it if you never use it

After preventing PCAppStore from running, my laptop finally behaved as expected:

  • ✅ Display turns off after 3 minutes
  • ✅ Laptop enters sleep automatically
  • ✅ Wake-up works normally

🔐 Bonus: Require a PIN After Sleep

After fixing sleep, I noticed another issue:

The laptop woke directly to the desktop instead of asking for my PIN.

To fix that:

Settings → Accounts → Sign-in options

Configure:

If you've been away, when should Windows require you to sign in again?

Choose the shortest available delay (or Immediately, depending on your Windows version).

🛠 Useful Commands

Check what's preventing sleep 

powercfg /requests
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View supported sleep states 

powercfg /a
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Generate an energy report 

powercfg /energy
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Generate a Sleep Study report 

powercfg /sleepstudy
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Show devices allowed to wake the PC 

powercfg /devicequery wake_armed
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💡 Lessons Learned

A few things I learned from this experience:

  • Start with powercfg /requests whenever Windows won't sleep.
  • msedgewebview2.exe is often just the messenger—you need to identify the parent application.
  • Modern Standby systems are more susceptible to applications holding wake locks.
  • Third-party utilities can unintentionally interfere with Windows power management.

Final Thoughts

Initially, I suspected Windows, Dell firmware, or Modern Standby itself.

In reality, a background application was keeping the display awake by holding a WebView2 Video Wake Lock.

If your Windows laptop refuses to sleep despite correct power settings, don't overlook background applications.

A single process may be the only thing standing between you and a properly sleeping system.

Hopefully this saves someone else a few hours of troubleshooting.

Have you encountered a similar issue?

I'd love to hear what prevented sleep on your machine.

Share your experience in the comments!

Windows #Windows11 #PowerManagement #Troubleshooting #WebView2 #PowerShell #Dell #ModernStandby #DeveloperTips

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