Please help me. I dont have a PC at home; I just have a laptop that cannot remove the drive from the system. 1) Install a USB flash drive or other devices in a system. Verify you can see the drive of the device listed under Disk Drives in Device Manager. Remove the drive from the system. Verify the drive is no longer listed in Device Manager even when you click Show hidden devices in the View menu of Device Manager. 2) Open the System window and click Advanced system settings. On the Advanced tab of System Properties box, click Environment Variables. Add a new user variable named devmgr_show_nonpresent_devices and give the variable a value of 1. Log off and log back on the system. 3) Return to Device Manager. When you show hidden devices, the USB flash drive or device is listed. Uninstall its drives. What other devices showed up in Device Manager that were not shown in Step 1?