Windows 8 Login Screen - Mouse/Keyboard Stop Working

a reply from microsoft abaout this problem is really welcoming because actualy i cant log in on my pc and i have all my work inside i have no way to get it back once i cant get in safe mode and i dont have a cd for booting it up

i tried to call microsoft yestarday but after long time trying to contact the i got some one who putted me on hold and drop the call really nice from them

no solution for this for whyle i tried every thing and no way to log on the pc because of this

I think I am getting to the bottom of this... slowly.

As I said yesterday, my pc is working but the problem is not solved... well I was right as I woke this morning and problem is back. (Note I restarted the pc a few times yesterday).

So rather than put the disc in to fudge fix the problem I tried another trick... remote desktop.

When I booted into safe mode with the disc yesterday I enabled remote desktop in case the problem came back, so glad I did now.

Anyway I remote connected using my surface and went straight into Device Manager and there it was, that little yellow symbol telling me there was an issue :-)

The problem seemed to be with a Universal Serial Bus controller called

Intel(R) 6 Series/C200 Series Chipset Family USB Enhanced Host Controller - 1C26

I checked the properties and it said something like "Windows has stopped this devices as a problem was reported" or something along those lines. I did take a screenshot with the surface but for some reason it didn't save. Anyway, I tried a driver update but windows found none so I uninstalled it and rebooted. PC is working again and it looks ok in device manager, for now.

So the question is, what's causing the device to stop working?

I reported this problem as well (somewhere in this thread).

I appear to have inadvertently solved "my" problem. Like most reporting this issue it would happen every few days, and I'd have to boot from my repair CD.

I was given a touchscreen monitor as a present, and so I installed it. Ever since then (3 weeks now - and I use my computer 10 hours per day) I have not had a problem with the keyboard or mouse freezing ... no other changes. I'm hoping that this may point the MS techs in the right direction. The problem may have something to do with the order in which the OS interrogates the USB ports or assigns priority to said ports - I think it's switching the USB ports to "power off" and "can't wake the computer".

Try rebooting after each change, especially the wireless.   Are you pulling a USB receiver to disable the mouse?   Is it in a powered USB hub?   If so, perhaps you should also try repowering that?

Yes I tried rebooting after each change as that's the obvious thing to do. No its not a hub.

Check to see if that was enough of a hardware reset to just let you continue the boot.   Otherwise what happens?

After booting into safe mode using the disc I can confirm that my PC works again how ever this does not solve the problem because in my line of work a problem is solved when you can switch it off and on as you pleased i.e. you know what caused it and how to prevent it.

I think it may help if you clarify what you are seeing as a result of your "added safe mode to the boot options so on start up every time I an choose normal mode or safe mode".   What I was expecting you would see from my suggestion was a new panel with a Change Options link at the bottom.   And from there you could choose what to do, the default being to just continue the first boot selection (e.g. the only one) normally, as if that menu had not even been shown.

What I see now is that rather than windows just booting all the way it will now stop and display like a which OS would I like to boot. With the default windows 8 and the added windows 8 safe mode.

The idea is it would clarify whether the device support was being provided by the boot manager (or UEFI) or whether the new OS would be responsible for the problem symptom.

If you read my first post I stated that I had the problem BEFORE I added safemode.

As I mentioned above, by booting into safe mode with the disc and then shutting down and rebooting the PC normally the issue appears to be gone... for now and this does not mean the problem is solved.

Kb is wired, mouse is wireless. Tried removing one and then the other but no change.

Try rebooting after each change, especially the wireless.   Are you pulling a USB receiver to disable the mouse?   Is it in a powered USB hub?   If so, perhaps you should also try repowering that?

I can confirm that with the disc I can get into safe mode, so where should I start looking?

Check to see if that was enough of a hardware reset to just let you continue the boot.   Otherwise what happens?

I know of event viewer and where to find it but I haven't really used it so not sure where I should be looking

If it is just a hardware hang I'm not sure what you would see.   Event viewer would be good for detecting crashes or perhaps other signs of driver failure.   I suppose though that you might at least be able to see if the OS had detected the failed reboot, e.g. in terms of timestamped entries which were obviously created when you had the problem symptom but not associated with what you were doing then.

I think it may help if you clarify what you are seeing as a result of your "added safe mode to the boot options so on start up every time I an choose normal mode or safe mode".   What I was expecting you would see from my suggestion was a new panel with a Change Options link at the bottom.   And from there you could choose what to do, the default being to just continue the first boot selection (e.g. the only one) normally, as if that menu had not even been shown.   The idea is it would clarify whether the device support was being provided by the boot manager (or UEFI) or whether the new OS would be responsible for the problem symptom.

HTH

Robert