Desktop Not Recognizing Keyboard on Startup

My desktop will not recognize any keyboards that I have. I had to start in safe mode to uninstall my paid version of Avast. When I rebooted I lost the ability for any of my keyboards to be recognized. I have tried a PS-2 as well as wireless. Is there a workaround?
 

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Last updated September 21, 2018 Views 8,586 Applies to:

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Hi,

 

Is the issue just the keyboards or other USB devices?

 

Method 1:

 

Run this fixit and check.

Hardware devices are not working or are not detected in Windows

 

Method 2:

 

Perform a system restore and check.

How to restore Windows XP to a previous state

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Unfortunately as I initially stated I can't get log in becuase of no keyboard, so I can't enter my password to launch windows. My USB ports are functional, my wireless mouse works fine.

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What is the make, model, and model number of your PC?

Is this problem restricted to after Windows loads only? Or are you also unable to enter the BIOS?

How many keyboards have you tried? What kind were they? Wired? Wireless? USB? PS/2?

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Dell Dimension

I can only get to the Windows Sign In Box

3 wireless and one PS-2

 

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Out of the three wireless keyboards, how often did you swap out the unit that contains the batteries?

Also can you use the F2 key to maneuver around the BIOS? See:

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I changed batteries in everything

I can not use any keys on any keyboard...it doesn't recognize that there is a keyboard connected!!

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The only thing I can think of for now is for you to a use a wired USB keyboard, turn on PC, IMMEDIATELY tap the F2 key to see if you can enter the BIOS (software that exists on your Dell motherboard's CMOS chip and has NOTHING to do with Windows).

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Hi,

First of all you haven't (specifically) answered Daavee's question about whether F2 to invoke BIOS setup is possible. Look for the prompt immediately after power up but before Windows starts to load. Keep hitting F2 just after power up, twice a second. Does this get you into BIOS setup? This will help identify whether or not this is a hardware problem or a Windows problem. To be sure, repeat this test 2 or 3 times if you cannot get into BIOS on the first attempt.

When you used a PS/2 keyboard, did you plug it into a green socket or a purple socket?

EDIT: Also, PS/2 devices are not guaranteed to work unless connected before booting the PC.

Tricky

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Sorry for the delayed response I've been working out of town. So I bought a USB keyboard and can access the Bios with F2, the keyboard works within the setup menu. I tried to enter into safemode and still can't enter my password to get past the windows login.

One final note: I am not a newbie you are dealing with nor am I MCSE or A+ certified. I fall into that danger zone as you "techies" or wanna be "techies" like to say. So responses like did you check the batteries or did you plug the keyboard into the green or purple socket are insulting.

I do appreciate the help here just take away the newbie questions and help me if you can.

Thank you!

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So responses like did you check the batteries or did you plug the keyboard into the green or purple socket are insulting.


So how are we to supposed to gauge your technical expertise? Sorry for insulting you.

I will not be contributing anything more for fear of making further insulting replies.

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