I'm having a really strange problem with a Windows 7 SP1 machine.
All of the USB devices (except the mouse and an external USB audio card) are not working.
I've got no clue what the hell is wrong with the OS. All USB flash devices are recognized but are not mounted and in the
Device Manager they show up with an exclamation mark stating there is something wrong with the drivers. They're not showning in
Disk Manager as well.
The devices and usb ports are working fine - I've tried to mount all of the USB flash pens I had on all ports of the same machine under
Slackware and everything worked just fine. So I've ruled that one out as well.
So far I've tried:
- Uninstalling the device from
Device Manager, rebooting, inserting the USB again; result: Failed to install driver.
- Installing all updates from the
Multi Byte Malwareand
Avirato scan for any viruses - nothing found (pretty much the machine is used for development of web sites and android applications with licensed applications so having viruses is quite unlikely)
- A couple of
Fix meprograms from
Microsoft support centerbut none of them fixed anything.
I would really, REALLY appreciate any ideas - what so ever! This is quite irritating and I'm out of ideas...