Keyboard not working until the login section.Cant enter Bios

February 11, 2020 at 09:49:13
Specs: Windows 7, /2
The question is self explanatory.. i cant enter bios because my keyboard does not work until the login screen pops up.. Tried on all ports but only the KB(usb) is not working.Mouse works just fine...

So if anyone can help it would be awesome.

Thanks in advance


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#1
February 11, 2020 at 11:45:03
How about make/model & whether it's a desktop or laptop? If it's a desktop & has PS/2 ports, try a PS/2 keyboard. Have you tried immediately & constantly tapping the BIOS key while doing a cold boot?

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#2
February 11, 2020 at 15:56:01
If your keyboard is a wireless USB keyboard or is a keyboard that requires a special driver to run it (Gaming?) then it will not work until Windows drivers load. Also some motherboards have USB ports that are active through an internal hub or internal expansion chip. These ports are not active until their Windows drivers are loaded.
Try a PS2 keyboard (as mentioned) if possible since they never need drivers and are always active at boot.
Try a simpler inexpensive USB wired keyboard since they are more likely to work at boot up.
Make sure that you have tried all USB ports, especially rear USB2.0 ports if you have 2.0 & 3.0/3.1 ports.
If all else fails, unplug the hard drive and there will be no choice of booting into Windows so the only option will be BIOS set up. Once you are in your BIOS set up disable fast boot so it will be easier next time to access your BIOS.
The very last option is to Clear your CMOS (BIOS settings) but ONLY if you are comfortable resetting everything after that. You would first reset to defaults and then go through all settings to make sure they are all correct for you and your system.

You have to be a little bit crazy to keep you from going insane.


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#3
February 13, 2020 at 09:23:02
It is a desktop pc and my KB is wired. I kept on tapping the key even before my pc restarted.I tried connecting to all the usb ports but nothing changed.But i did not try the ps2 port.

And will anything change of i use another KB.

And can i do something with the command prompt or is there any software by which i can modify BIOS setting after logged in?

Thanks for your replies.


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#4
February 13, 2020 at 09:27:43
I also removed the cmos battery for an hour or so and when i booted after inserting it back then a before anything came up on screen it showed something about "checksum error". After the usual login only the time and date was different. After that when i restarted then it was the normal boot process and nothing changed (it did not show the error again)

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#5
February 13, 2020 at 13:35:42
You probably shouldn't have cleared the BIOS settings by removing the battery. That said, you need to enter the BIOS (CMOS) screens to correct the settings that are causing the check sum error. While in the settings there should be a setting in there called "enable legacy USB support". Enabling that setting should allow the keyboard to function before Windows starts. Be sure to set the correct date and time and the boot order. Then save when exiting. If you find you can't enter the BIOS when the computer first starts up you could remove the battery again to generate the check sum error. You should then be able to enter the BIOS screens. The keystroke/s to enter are displayed on the screen at that time.

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#6
February 13, 2020 at 20:37:54
You should have tried:
"If all else fails, unplug the hard drive and there will be no choice of booting into Windows so the only option will be BIOS set up. Once you are in your BIOS set up disable fast boot so it will be easier next time to access your BIOS."

And before that you should have tried another keyboard, especially a PS2 keyboard if one is available.:
"Try a PS2 keyboard (as mentioned) if possible since they never need drivers and are always active at boot.
Try a simpler inexpensive USB wired keyboard since they are more likely to work at boot up."

You have to be a little bit crazy to keep you from going insane.


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#7
February 14, 2020 at 07:59:33
okay will try those..
Thanks for your advises

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