I have a gateway6520gz laptop running windows xp and about 3 weeks ago all 4 of my usb ports just up and quit working. The only thing I had plugged in was a usb mouse. I tried plugging in my printer thru the usb ports but nothing. The device manager shows them says there is nothing wrong. I did a restore with backup and a destructive restore I also reinstalled the chipset drivers I also went into the bios setting and disabled them tried that then went back into bios and enabled them. I have tried everything but replacing the motherboard. The computer is a dec 2005 model with an upgraded memory to 1gig.
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If a problem occurs on your computer after you install or update a driver, use Windows Device Driver Rollback to replace the driver with the previously installed version. 1. Click the Start button and click Control Panel.2. Under Pick a Category, click Performance and Maintenance.3. Click System.4. In the System Properties window, click the Hardware tab.5. Click Device Manager.6. Right-click the device for which the new driver was installed and click Properties.7. Click the Drivers tab.8. Click Roll Back Driver.If Device Driver Rollback does not resolve the problem, then use System Restore to return your computer to the operating state that existed before you installed the new driver. Another cause for this is corrupt registry. I would suggest to use a system utility tool like Reginout to fix this problem.
Four steps can help you reset the lost Windows 8/7/vista/xp/2008/2003/2000 password: Step 1: Download Windows Password Rescuer/Windows password recovery tool on any available computer you have access to. Step 2: Install Windows Password Rescuer and run it to burn a bootable CD/DVD or USB flash drive Step 3: BIOS setting of your locked computer to set it boot from CD/USB. Step 4: Insert the newly CD/USB to the computer.Reset Windows password successfully after Windows Password Rescuer starts.You also can use Windows Password Rescuer to add a new user with administrator privilege to your Windows when you can not find target user. With this New user account you can logon your locked computer directly. More details about the usage: http://www.daossoft.com/documents/how-to-reset-window-2000-xp-vista-win7-password.html
Most likely a motherboard problem, though you can try and re-do windows, best bet on getting it all to work is Turn off CPU, Unplug Power cable, And all usb devices, let it sit for about 20mins. Plug it all back in. Turn on the CPU! Though this might really get on your nerves having to do this multiple times, id get a new motherboard.
Resetting your USB Controllers
I'm going to assume that you're running XP (home or pro). Recently I had to refresh my USB ports. This is the sequence I used.
1. Right-click My Computer and select Properties
2. Click Hardware
3. Click Device Manager
4. Expand the Universal Serial Bus Controller
5. Right-click each USB device listed and select Uninstall
6. Click OK to confirm removal of each device
Note: Repeat steps 5 and 6 until all devices under UBS Controller are removed
7. Shut down computer.
CAUTION: Ensure that the Shut Down option is selected instead of Restart.
8. Wait a few seconds and turn computer on. When it reboots you will see "Windows has detected new or added hardware"
Note: You will have to insert your Windows CD, if prompted.
These steps will refresh the USB ports.
Added Notes: 1) If your mouse is a USB you will have to use the
keyboard to shut down your computer. 2) It would be wise to unplug
everything from your USB ports EXCEPT your mouse and/or keyboard before
you restart the computer to avoid Windows replicating any printers,
scanners, digi-cams, etc. Once Windows has refreshed your USB
controllers and ports, shut down again. reconnect, and restart.
As you have already stated that the port in question can run a standard optical mouse, the port seems to be working fine.
Sometimes the drivers for a USB device need to be installed for each USB port. Maybe you have installed these drivers for 3 of your 4 USB ports, but not for the one in question, result of which is the problem you face.