XP SP2 stopping USB working!

  Big Ben 11:35 14 Jan 2008

I've just downloaded and installed XP SP2 - but its not recognising any of the the devices i have connected via the usb ports, i have looked at the device manager in the control panel and it says there are no conflicts - i did download SP2 last week and it had the same problem, so i restored xp to before it was loaded on? Help!!!!

  howard64 12:19 14 Jan 2008

try disconnecting all usb devices and rebooting. Then add each device individually - they may then be recognised and installed.

  Big Ben 12:58 14 Jan 2008

Thats doing nothing either!

  Big Ben 15:14 14 Jan 2008

its clearly something sp2 is doing to the pc, as when i take sp2 off, it doesn't happen anymore. The PC has previously run sp2 before i restored it to its factory settings!

  howard64 16:50 14 Jan 2008

try running sfc /scannow and see if that sorts it.

  Fruit Bat /\0/\ 17:39 14 Jan 2008

USB Permissions
Start - Run and type
Press OK.
Navigate to:
Right click on the folder and pick permissions. Set to ALLOW.
Do the same for:


Refresh USB Ports
Use Drive clean up to remove USB device drive info from the registry
click here
In device manager Uninstall EVERYTHING under the heading USB,
reboot the PC let XP find and install new hardware.
Your equipment should now be recognised.

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