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Windows XP won't recognize USB mouse or keyboard

My friend's Dell Optiplex GX620 tower gave a blue screen of death so I offered to fix it.  The error message was "missing Windows\System32\Conf\System".  I did a little research and followed the instructions at (http://tinyurl.com/abvnx) to try to fix it ("Harder Method").

I successfully completed steps 1-3 (all from the Recovery Console) and restarted the computer.  Success!  Windows loaded perfectly, including the two user accounts on the computer.  Only problem is the OS won't recognize any USB mouse or keyboard that's plugged in.  

I've tried multiple mouses in every USB slot with no success.  The keyboard works fine in BIOS and fine in the Recovery Console, but as soon as XP boots up it stops working.  I'm guessing the restored drivers for the USB ports are bad/missing, but I can't get in to fix them because I have no way to interact with the operating system.

Any ideas?  I'm completely at a loss.
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superslamwich
Asked:
superslamwich
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1 Solution
 
1057Commented:
Could try a repair of windows with boot cd?
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Arabia_vnCommented:
Enter Bios and see if the option "Support USB keyboard" and "Support USB mouse" are enabled first. By default they are disabled.
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rhandelsCommented:
What happens if you, after restart, pull out the USB cables for both mouse and keyboard and plug them back in again? Normally Microsoft should reinstall or reconfigure drivers when you insert any USB device into the machine.
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senadCommented:
check first what @Arabia_vn suggested ....
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senadCommented:
o initiate recognition of the USB device, first unplug the USB device and restart the computer. Then, wait five to ten seconds before you plug the USB device into the computer or hub.
Then :

To initiate recognition of the USB device by using Device Manager, follow these steps:

   1. Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
   2. Click to select your computer as the location for the scan.
   3. On the Action menu, click Scan for hardware changes.

      Windows XP recognizes the new device.
   4. Close the Device Manager window.

If this method resolves the issue, you are finished.

You can also try and update USB 2.0 Enhanced Host Controller drivers.
See the link :
http://support.microsoft.com/kb/329632
or dll them separately here :
http://www.zdnetasia.com/downloads/pc/swinfo/0,39043052,39570473s,00.htm
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senadCommented:
http://www.softwarepatch.com/tips/usb2-driver.html
check for USB2 Enhanced Controller also ....
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nobusCommented:
you can also- in device manager - click in view "show hidden devices"
then delete all mouse and keyboards, and boot  again
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rhandelsCommented:
Euhm guys, i don't wanne sound like some sort of douche, but he stated clearly that his mouse and keyboard aren't functioning, how should he be able to go to the device manager without any input device??
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Ravi AgrawalCommented:
Again boot from the XP Cd to recovery console.

Stop at Step One this time & don't proceed to recover the registry from your System Restore Points.

See if you get keyboard / mouse functionality.

If yes and I sincerely hope you should as this is would be almost equal to a fresh install of Windows then you must choose to reinstall all your Applications and scan thoroughly for malware.

Idea behind it - Your keyboard / mouse functionality is probably lost due to a virus activity of some sort which regains activation from one of your Restore Points. Or maybe some Corrupt drivers being restored again which are not working.

Ravi.
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Danny ChildIT ManagerCommented:
I had this about 9 months ago on a Dell, and the Repair Install was the only fix...

You could also try some remote control tools like www.logmein.com, but you'll need one that can push to a remote host without any interaction on it.  
I'd take the disk out first, slave it somewhere, and get a full data backup before I did anything, of course...
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Danny ChildIT ManagerCommented:
Safe Mode any good?
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☠ MASQ ☠Commented:
Go with 1057's original post of the repair reinstall using the Dell XP CD
As you're booting from the CD you'll have both Mouse and Keyboard drivers enabled from the disk and the Dell CD should already have the SATA drivers for the GX620 slipstreamed onto it
This happens with Optiplex repairs a lot.

Good spot rhandels! There's no point offering a suggestion in Windows until the drivers are restored :)
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superslamwichAuthor Commented:
Hi everyone!  Thanks for the great suggestions.  Unfortunately other problems with the installation (which turned out to boil down to a failed hard drive) forced me to do a complete restore on the system, so I won't be able to test some of these.  

I'm not sure how exactly to resolve this question - whether it should be deleted or the points split or what - any advice would be great.  Although there's no way for me to test any of this anymore some responses for posterity:

1)  Couldn't repair the windows installation with the boot cd - I could only reformat and reinstall.  This might be due to the hard drive problem though.

2)  All BIOS Settings supported USB Mouse/Keyboard

3)  Pulling and re-plugging in the cables didn't solve the problem.  The devices still weren't recognized or acknowledged.  The noises usually made when unrecognized hardware is added or removed didn't happen.  This all leads me to believe the problem is with the drivers for the USB ports themselves, not necessarily the mouse/keyboard.

4)  as rhandels said, I couldn't access device manager or anything else since I had no way of interacting with the OS

5)  Stopping at step one is what I did originally, but it didn't help - the mouse and keyboard were still non-functional.  That's why I ended up doing steps 2 & 3 from the Recovery Console as well - I was hoping finishing the entire process would solve the problem (which it didn't).

6)  Safe mode was no good either


Sam
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Ravi AgrawalCommented:
If stopping at Step One was of no help, then obviously a re-install was the only option left to you. Yes, your hard drive may have developed Bad sectors where the keyboard n mouse drivers were ultimately stored.

My last word, check thoroughly with ScanDisk to mark all the Bad Sectors, Backup and use the Drive for secondary storage only from now on as it can fail anytime. It may last another good years, I don't know but if I was in your shoes, I'd purchase a new Hard Drive and use that.

Ravi.
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nobusCommented:
just for giggles, run HDD regenerator on your bad drive : http://www.dposoft.net/
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