The Power Saving Trap
Windows 11 is aggressively tuned to save battery power, especially on laptops. One of the ways it achieves this is through a feature called USB Selective Suspend. By default, if Windows detects that a USB device (like an external hard drive, a gaming controller, or a high-end audio interface) has been idle for a short period, it will automatically cut power to that specific USB port. While this extends battery life, it is disastrous for devices that require a constant, uninterrupted power connection, causing hard drives to spontaneously disconnect mid-transfer or audio interfaces to completely drop out during a recording session.
Disabling Selective Suspend
To ensure your USB peripherals receive continuous power and stop Windows 11 from automatically suspending them, you must disable the Selective Suspend feature within your active Power Plan.
Press the Windows key, type Edit power plan, and press Enter. In the window that appears, click the blue link labelled Change advanced power settings. A small dialogue box will pop up containing a list of hardware components. Scroll down and click the small plus (+) icon next to USB settings to expand it. Then, expand the USB selective suspend setting option beneath it. You will see options for “On battery” and “Plugged in.” Click on the blue text (which likely says “Enabled”) and use the dropdown menu to change it to Disabled for both scenarios. Click Apply and then OK. Your USB ports will now remain fully powered at all times.