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(Solved) Keyboard is not recognized, cannot login

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Lady:
My desktop pc doesn't recognize my keyboard anymore. Cannot login. Tested keyboard on laptop, no problem. Tried an old keyboard, nothing. Mouse works. Both are plugged in by USB cables. Tried different ports. Please help.

Boggin:
If you have a PS2 port on your computer then you can buy an USB to PS2 converter, switch the computer off, plug the keyboard in and then switch on for Windows to load the drivers and then you can troubleshoot the keyboard drivers.

As the mouse works in USB then it isn't likely to be your motherboard.

Lady:
I don't have a PS2 port and my keyboard has a usb connector, not a PS2 plug, if that is the right word. What now? I can buy that converter and borrow a keyboard with a PS2 plug. Is that an idea? Or are there converters for usb connector to ps2 plug? So that I can get access through  2 converters? Or: can I have a PS2 port built in?

Lady:
Problem is solved!! Someone told me to do a reboot in Safe Mode and do a system restore. Luckily there was an automated system restore point from this morning, so I didn't have to think about changes in between. Phewwww, what a relief!

I can only guess what happened. In case anybody is interested, this is what I did today. This afternoon I installed an update for AnyVideoConverter and I had a funny feeling about it. Just too much was going on. So to get possible malware out I ran AdwCleaner. I had run AC this morning and it removed a registry key of a program I uninstalled the other day, so that was alright. So I knew that the registry keys AC came up with had to be of something today. I had also re-installed ESET online scanner and HitmanPro (don't ask, too long a story) but those are trusted programs. So the keys AC found had to come from this update. I let AC clean them and there was the reboot and then my keyboard was dead. So something happened to its drivers. Anybody for a solid explanation?

Thank you, Boggin, for your quick response. I was very stressed out from it.

Is there something I must do to check drivers or ports or anything? When I hooked everything up and opened several programs I had a freeze. Maybe the pc is a bit upset too. :)

Samson:
AnyVideoConverter contains "Bundleware", from memory Open Candy, perhaps that is what AdwCleaner picked up?

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