device manager cleanup

Device manager cleanup on Windows involves removing stale or ghost device entries that can cause hardware conflicts, driver issues, or pairing failures. Common scenarios include Bluetooth devices that won't connect, peripherals that appear multiple times, or devices that remain listed after unplugging. The process typically uses Device Manager to uninstall hidden or non-present devices, often after enabling 'Show hidden devices' from the View menu. This can resolve problems like Bluetooth pairing failures, audio device glitches, or USB recognition errors. Cleanup may also involve deleting leftover driver packages or resetting related services. It is a targeted troubleshooting step, not a routine maintenance task, and should be done carefully to avoid removing needed devices.