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I currently have a problem with a system (vista home premium, 64bit). USB kbd/mouse will not work when windows has booted/loaded their drivers and Im stuck at the login screen with no working input devices. None of the available boot options after F8 will boot to working kbd/mouse.

They work in the bios setup and they seem powered all the way until a few seconds before the login screen. Legacy USB devices is also enabled in the bios.

They also work with the recovery dvd, but I am unable to start the device manager to check or uninstall the mouse/kbd drivers. Cant get devmgmt.msc nor devmgr.dll (with rundll32) to work.

System repair does not detect the problem and there are no available restore points (it was disabled).

Any ideas?

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Do they work in safe mode? –  MaQleod Oct 19 '12 at 17:26
    
No, no boot option with F8 works –  Jonas Oct 19 '12 at 17:28
    
Does it work at all? Allow you into the system bios and move around for instance? –  francisswest Oct 19 '12 at 17:40
    
This is likely a USB driver problem. Use a non-usb keyboard. –  Ramhound Oct 19 '12 at 17:43
    
They work in bios/cmos. –  Jonas Oct 19 '12 at 17:48

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