While we recommend leaving USB selective suspend enabled on your battery-powered computer, you should disable the feature if you’re having USB-related troubles. USB selective suspend is enabled by default on all Windows devices. However, there are instances when the setting causes some USB devices to freeze or become unresponsive-mainly when your PC stays idle for too long. Problems Associated With USB Selective SuspendĪs described above, it’s clear that USB selective suspend has immense benefits on your PC’s battery life. Refer to this official Microsoft documentation to learn more about the feature. USB selectively hibernates passive USB devices to save battery power.
If you have several devices connected to your PC, Windows will only suspend the idle USB devices and ports. Think of it as Windows hibernating or putting your USB device to sleep. Windows may suspend the device and put it in a “low power state” where it consumes very little battery power.
Say, for example, there’s a USB fingerprint reader connected to your computer, and you haven’t used it for over an hour. That’s why Windows temporarily suspends idle USB devices to conserve battery power.
If your computer runs on battery power, these external devices will deplete your battery faster than usual. Many external devices, accessories, and peripherals draw power from your PC when you plug them into a USB port.
