1. Disable USB Selective Suspend (The Fix That Works 80% of the Time)
If your Bluetooth mouse drops out randomly — say, every 10 minutes or when you're typing fast — the culprit is almost always Windows' USB selective suspend setting. This feature tells your USB ports to cut power to devices that appear idle. The Bluetooth adapter doesn't communicate constantly, so Windows thinks it's idle and yanks the power. Result: your mouse freezes for a few seconds, then reconnects, or disconnects entirely until you reboot.
Here's how to turn it off:
- Open the Control Panel. Press Win + R, type
control, hit Enter. - Click Hardware and Sound, then Power Options.
- Next to your selected plan (likely "Balanced" or "High performance"), click Change plan settings.
- Click Change advanced power settings.
- Scroll down to USB settings and expand it. Then expand USB selective suspend setting.
- Set both On battery and Plugged in to Disabled.
- Click Apply and OK.
After applying, you should see the settings change immediately. No reboot needed, but if your mouse is still acting up, restart your PC anyway. Test for a few hours. This single change fixes the majority of random Bluetooth dropouts on both Windows 10 and Windows 11.
2. Stop Windows From Turning Off the Bluetooth Adapter to Save Power
Even with USB selective suspend off, Windows can still shut down the Bluetooth adapter itself if it thinks it's not being used. This is a separate power management option, and it's sneaky because it resets after driver updates.
To fix it:
- Press Win + X and select Device Manager.
- Expand Bluetooth. Look for your adapter — typically named something like "Intel(R) Wireless Bluetooth(R)" or "Realtek Bluetooth Adapter".
- Right-click it and choose Properties.
- Go to the Power Management tab.
- Uncheck "Allow the computer to turn off this device to save power".
- Click OK.
You'll notice the checkbox is checked by default on most laptops and some desktops. After unchecking it, the adapter stays awake. This matters especially on laptops where Windows aggressively manages power. If you don't see a Power Management tab, your adapter driver might be outdated — skip to the next fix.
3. Update or Reinstall the Bluetooth Driver (When the Above Don't Help)
Sometimes the problem isn't power management at all. A corrupted driver or a bad Windows update can cause the Bluetooth stack to drop connections randomly. You'll see this after a Windows feature update, or after you connect a new Bluetooth device and the driver conflicts.
Here's the order I recommend:
- Open Device Manager again.
- Right-click your Bluetooth adapter, select Update driver, then Search automatically for drivers. Let Windows check. If it finds nothing, proceed to step 3.
- Go to your laptop or motherboard manufacturer's support site. Download the latest Bluetooth driver for your exact model. Don't use generic drivers from Intel or Realtek unless you know the specific chip.
- Install the driver, reboot, and test.
If the problem persists, uninstall the driver completely. In Device Manager, right-click the adapter, choose Uninstall device, and check "Delete the driver software for this device". Then restart your PC. Windows will reinstall a clean driver on boot. This wipes out any corrupted settings.
A real-world trigger: Windows 11 22H2 users reported Bluetooth mice disconnecting after the update. The fix was reinstalling the driver. If you're on that version, skip the auto-update and go straight to the manufacturer's driver.
Quick-Reference Summary
| Cause | Fix | Difficulty |
|---|---|---|
| USB selective suspend cuts power to adapter | Disable it in Power Options | Beginner |
| Windows turns off adapter to save power | Uncheck power management in Device Manager | Beginner |
| Corrupted or outdated Bluetooth driver | Update or reinstall from manufacturer | Intermediate |
Start with fix #1. It's the most common and takes two minutes. If that doesn't solve it, move to #2, then #3. Most people never get past #1.