How to Check Modern Standby Support on Windows 11
You can check if your Windows 11 PC supports Modern Standby by using the Command Prompt to run a power efficiency diagnostic report.
Modern Standby, also known as S0 Low Power Idle, is a power management feature that allows your Windows device to wake up almost instantly, much like a smartphone. It keeps essential background tasks running while in a low-power state.
This feature, introduced with Windows 8.1, enables your device to maintain an active network connection and perform updates even when the screen is off, but sometimes it can lead to unexpected battery drain or heat generation.
Running the `powercfg /energy` command in Command Prompt generates a detailed report, highlighting whether your system supports Modern Standby and identifying potential issues causing excessive power consumption.
You can check Modern Standby support by opening Command Prompt as administrator and typing `powercfg -a`. If you see “Standby (S0 Low Power Idle) Network Connected,” your device uses Modern Standby.
Why check for Modern Standby?
Modern Standby lets your Windows 11 PC stay connected to the internet even when the screen is off, allowing apps to update in the background.
What happens when you are done?
You will know if your hardware uses the modern S0 state or the older S3 sleep mode. You will also have the tools to generate a report to see exactly what is waking your computer up. This helps you fix overheating and battery issues.
How to check your sleep mode
Your Windows 11 PC uses Modern Standby if it can wake up quickly from a low-power state, much like your phone. To check if your computer supports this feature, you’ll need to run a quick command in the Terminal.
- Click the Start button and type “Terminal”.
- Right-click the app and select Run as administrator. (Admin privileges required)
- Type the following command and press Enter:
powercfg -a
If you see “Standby (S0 Low Power Idle) Network Connected,” your device is using Modern Standby. If you see “Standby (S3),” your device uses traditional sleep.
Troubleshooting battery drain and overheating
If your Windows 11 laptop is getting too hot or the battery is draining faster than it should, Modern Standby might be the culprit. You can create a ‘Sleep Study’ report to see exactly what’s using power in the background and causing these issues.
- Open Terminal as administrator. (Admin privileges required)
- Type
powercfg /sleepstudyand press Enter. - Windows will save an HTML file to 📁C:\Windows\System32\sleepstudy-report.html.
Open this file in your web browser to see which apps are preventing your computer from staying in a deep sleep state. You can learn more at the official Microsoft Sleep Study documentation.
Can I disable Modern Standby?
You might be wondering if you can turn off Modern Standby on Windows 11, especially if you’re having battery issues. While it’s technically possible to disable it, this process involves making changes to your system’s registry, which can be risky if not done correctly.
- Press ⊞ Win+R, type
regedit, and press Enter. (Admin privileges required) - Navigate to 🗝️HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power.
- Look for a value named “PlatformAoAcOverride”. If it does not exist, right-click, select New > DWORD (32-bit) Value, and name it “PlatformAoAcOverride”.
- Set the value to 0 to disable Modern Standby.
Note: This may not work on all modern hardware, as many newer laptops no longer support S3 sleep at the firmware level.
Why does my laptop get hot in sleep mode?
Your laptop might get hot in sleep mode because Modern Standby lets it run background tasks like updates or syncing, which keeps the processor active.
Summary
Modern Standby offers a quick wake-up for your Windows 11 PC but can drain the battery if background tasks aren’t managed, and you can check its status or troubleshoot issues using simple commands.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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