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Solved
XP won't recognize USB hubs
Posted on 2007-10-25
I'm running XP 64 SP2 on a Tyan 2895 board. I can't install a USB 2.0 hub to any on-board USB 2.0 port. XP finds new hardware and the wizard opens, but going through the install drivers routine finds no drivers and the hub will not install. Normally, a hub should simply be recognized and installed automatically. There should be no drivers needed. I've tried a couple of different hubs with the same results. The same issue occurs with a wireless USB keyboard, but all other USB devices work okay. I have unistalled and reinstalled the hubs and controllers, but that did not help. Thanks.
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14 Comments
It could that is doesn't know where they drivers are...
***always backup the registry before making any changes***
Start the Registry Editor (Run -> Regedit). Check if under HKEY_LOCAL_MACHINE\SOFTWAR
Then delete the file C:\WINDOWS\inf\infcache.1 - XP will recreate it.
The INF folder and the infcache.1 file are 'hidden'. To see them in the Windows Explorer:
Menu 'Tools' -> 'Folder Options' Tab 'View', mark 'show hidden files and folders'
If it still doesn't work after a restart, the files in C:\WINDOWS\inf might be corrupt. A Windows repair install should correct this.
Another thing to check is if the values 'FactoryPreInstallInProgre
HKEY_LOCAL_MACHINE\SYSTEM\
and
HKEY_LOCAL_MACHINE\SOFTWAR
They should be 0 or not present.
***always backup the registry before making any changes***
Start the Registry Editor (Run -> Regedit). Check if under HKEY_LOCAL_MACHINE\SOFTWAR
Then delete the file C:\WINDOWS\inf\infcache.1 - XP will recreate it.
The INF folder and the infcache.1 file are 'hidden'. To see them in the Windows Explorer:
Menu 'Tools' -> 'Folder Options' Tab 'View', mark 'show hidden files and folders'
If it still doesn't work after a restart, the files in C:\WINDOWS\inf might be corrupt. A Windows repair install should correct this.
Another thing to check is if the values 'FactoryPreInstallInProgre
HKEY_LOCAL_MACHINE\SYSTEM\
and
HKEY_LOCAL_MACHINE\SOFTWAR
They should be 0 or not present.
Thanks very much. %SystemRoot%\inf is in the proper key value. I copied out the infcache.1 file to another location. Then I rebooted, and the file was not re-created. I plugged in a few USB devices, including a hub, and the hub still fails to install. Should I replace original the infcache.1 file, or must something else be done for XP to recreate it?
A Windows repair is not an option, as it generally overwrites too many settings. I could copy certain files from a similary configured machine, if I knew which one(s) to try.
I have no Factory key in HKLM\SOFTWARE. Neither value is present in the Setup key.
A Windows repair is not an option, as it generally overwrites too many settings. I could copy certain files from a similary configured machine, if I knew which one(s) to try.
I have no Factory key in HKLM\SOFTWARE. Neither value is present in the Setup key.
Hmm, guess I would try going to a command prompt and running...
SET DEVMGR_SHOW_NONPRESENT_DEV
START DEVMGMT.MSC
Once in device manager, go the View and place a check for "Show Hidden devices"
I would then remove any missing devices (grey shaded) under Universal Serial Bus Controllers and Human Interface Devices. It's possible some driver info stored there is messing up the install. If that doesn't work, I'd try removing all devices under both and then let Windows redetect all USB devices and root hubs etc.
SET DEVMGR_SHOW_NONPRESENT_DEV
START DEVMGMT.MSC
Once in device manager, go the View and place a check for "Show Hidden devices"
I would then remove any missing devices (grey shaded) under Universal Serial Bus Controllers and Human Interface Devices. It's possible some driver info stored there is messing up the install. If that doesn't work, I'd try removing all devices under both and then let Windows redetect all USB devices and root hubs etc.
Thanks. I had quite a few missing devices in HIDs and USBCs. There were a few Generic USB Hub entries in USBCs. Probably 20 USB Mass Storage Devices. Under Other Devices, there were a bunch of USB Devices and USB2.0 Hub Controllers with the usual yellow ?, which I uninstalled. I rebooted and plugged in my hub. No joy, I'm afraid.
I then uninstalled everything under USBC and rebooted. Afterward, my attachhed USB mouse and dongles came back and work fine. However, when XP tried to install my hub, the same problem occurred. So, I'm afraid I'm still afflicted with this problem, but I do appreciate the help you've offered, and welcome more!
I then uninstalled everything under USBC and rebooted. Afterward, my attachhed USB mouse and dongles came back and work fine. However, when XP tried to install my hub, the same problem occurred. So, I'm afraid I'm still afflicted with this problem, but I do appreciate the help you've offered, and welcome more!
Figured, but was just checking as sometimes USB problems can be caused by the power supply or motherboard not providing enough power to the USB ports. A wall socket powered hub wouldn't be affected by that though.
Only other thing I can think of would be if usb.inf somehow is missing or corrupted in Windows\System32\Inf
Also look to see if usbhub.sys and usbd.sys exist in Windows\System32\Drivers
Only other thing I can think of would be if usb.inf somehow is missing or corrupted in Windows\System32\Inf
Also look to see if usbhub.sys and usbd.sys exist in Windows\System32\Drivers
Thanks. usbhub.sys and usbd.sys are present in \System32\Drivers. However, there was no usb,inf in \Windows\Inf. I think that's what you meant (not Windows\System32\Inf). I copied over a usb.inf file from an identically config'ed machine (same MB, chipset, OS). Problem solved!!!!
I have no idea of how the file got hosed. Also, I can't tell you how many lists I've posted to with no answer. You know your stuff!
I have no idea of how the file got hosed. Also, I can't tell you how many lists I've posted to with no answer. You know your stuff!
That was my original diagnosis
"If it still doesn't work after a restart, the files in C:\WINDOWS\inf might be corrupt. A Windows repair install should correct this."
"If it still doesn't work after a restart, the files in C:\WINDOWS\inf might be corrupt. A Windows repair install should correct this."
Thanks again. Pinpointing the exact file among many was the key. I would have done a repair a long time ago, but, as I mentioned, a repair wasn't really an option. Too many settings are affected. If all else failed, I would have thrown in a USB card.
Active 1 day ago
I had this problem with Windows XP 32 bit, this forum pointed me in the right direction, but the only alliby i would have to comment on this is if you have a problem with USB Hubs not acting as a plug and play device (prompting for install) on the windows XP 32 bit system, the inf directory is not in the system32 folder. check for the existance of this file:
Windows\inf\\usb.inf
If it's missing (like it was on mine) you'll get that issue.
Windows\inf\\usb.inf
If it's missing (like it was on mine) you'll get that issue.
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