A keyboard or mouse can wake a sleeping Windows PC only when the hardware, connection and power settings support it. Start by checking the device’s wake permission. If that option is missing, use the power button and check the computer manufacturer’s guidance rather than forcing unsupported settings.
First check whether the PC is really asleep
A dark display does not always mean the PC is in sleep mode. It may be hibernating, shut down or having a display problem. A brief press of the power button is a useful check; avoid holding it down unless you intend to force a shutdown.
Try a directly connected USB keyboard or mouse if possible. Wireless devices, Bluetooth adapters and docks may behave differently depending on the PC’s sleep state and whether they retain power.
Check the wake permission in Device Manager
- Right-click Start and open Device Manager.
- Find the keyboard or mouse you use and open its properties.
- If a Power Management tab is available, look for Allow this device to wake the computer.
- Enable the option where supported, save the change and test sleep again.
The tab and checkbox are not available for every device or sleep arrangement. Their absence does not mean you should change unrelated USB power settings.
Use powercfg to see what Windows supports
Microsoft documents these commands in its powercfg reference:
| Command | What it shows |
|---|---|
powercfg /a |
Available sleep states and reasons some are unavailable. |
powercfg /devicequery wake_armed |
Devices currently configured to wake the PC. |
powercfg /devicequery wake_programmable |
Devices for which wake permissions can be configured. |
powercfg /lastwake |
Information Windows recorded about the last wake event. |
If the device appears in the programmable list, an authorised administrator can use powercfg /deviceenablewake "DEVICE NAME", replacing the placeholder with the exact reported name. To reverse that permission, use powercfg /devicedisablewake "DEVICE NAME". Change one device at a time.
When the device still will not wake the PC
- Try another direct USB port instead of a hub or dock.
- Check the keyboard or mouse battery and reconnect its receiver.
- Review the PC manufacturer’s firmware and chipset guidance.
- Check whether the problem happens after sleep, hibernation or shutdown.
- If the power button wakes the PC but the display stays dark, investigate the display connection separately.
Some systems use Modern Standby and expose different controls from older PCs. A command cannot add a wake capability the hardware or firmware does not support. If an unfamiliar utility may be changing settings, our installed-apps guide can help you identify it.
Frequently asked questions
Why is the Power Management tab missing?
It depends on the device, driver and supported sleep states. Check the manufacturer’s instructions and powercfg /a.
Can Bluetooth always wake a sleeping PC?
No. Support depends on the PC, adapter, device and sleep state.
How do I stop a mouse waking the PC accidentally?
Remove that mouse’s wake permission where Windows supports doing so, leaving a reliable way to wake the computer.
Does waking from sleep also mean powering on from shutdown?
No. Those are different states with different hardware requirements.