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If not, try this:
- Shutdown and unplug all USB devices.
- Boot to BIOS Setup and load defaults (F5 or F9 usually).
- Boot your computer and create a new Environment variable called devmgr_show_nonpresent_devices and set it's value to 1 as follows:
- Right click on My Computer and select Properties
- XP - Click on the Advanced tab
- Vista or Windows 7 - Click on ]Advanced System Settings in left pane.
- Click on the Environmental Variables button
- Click the New button under the User variables for xxxxx" area.
- Set the Variable name as: devmgr_show_nonpresent_devices
- Set the Variable value to: 1
- Click OK as needed to close all the windows you opened.
- Right click on My Computer and select Properties
- Open Device Manager (Control Panel, System, Hardware tab, Device Manager)
- Click on View then Show hidden devices.
- Scroll down to USB and click on the plus to expand it.
- Uninstall them one at a time. DO NOT uninstall your mouse if you are using a USB mouse.
- Shutdown and reboot, let XP rediscover everything and load necessary drivers. This can take a few minutes, be patient.
Edited by Ztruker, 22 August 2012 - 06:02 PM.
