When i turn on message display error keyboard...i use ps2 and usb type...

why not buy a real keyboard. for USB?
vast types, even for $8.
hp what you never side what HP puter.??
hp made them for 33 years, 1984 to now.
endless.
my guess newer HP, like 10 years or newer
and has USB ports
then you found a USB to PS/2 adaptor (vast types exist)
but many dont work. right.
btw this is classic failure from 1999 to to now.
endless posts world wide,,,
the trouble is the PS2 keyboard, send commands very different that USB does.
Try this go to bios and turn on legacy USB>
maybe it can see he keyboad at boot (bios sees t first)
then BIOS passes this discovery to windows 10..
ive not touched or seen a PS2 keyboard, in years.
like year 2000?> 18 long years ago.
im old. worked them all.
PS/2 >>>>>adaptor >>>> USB modern system.
the adaptor must do 2 things, send power correctly to the KBD.
then translate PS/2 sings to USB sigs.
then BIOS needs to understand plug and play IDs from PS2
if missing IDs, or garbled, its born dead.

good luck there.
btw your pc is not PS2 certified so....

Are these wired or wireless, USB or PS2 connections..

PS2 Connectors should only be worked when the computer is Turned Off
USB can be Hot Swapped..

If USB try another USB port ..If PS2 make sure they weren't swapped by accident
Check your BIOS
Try another another Keyboard / Mouse

This one isn't easy but it might be a compatibility issue with the keyboard although ps2 keyboard are suppose to work 95% of the time there is still the possibility that your keyboard is not recognized or is defective, as for the usb, most pc's don't recognize it until it has time to install the drivers within windows, hope this helps.

YOUR KEYBOARD USB TYPE OR PS2 TYPE? COMPATIBLE TO BIOS SETTING PS2 TYPE KEYBOARD ALSO TRY TO CLEANING VACUUM YOUR MOTHERBOARD INSIDE CPU.

I would believe that it could be the Ps2/USB adapter is broken. From personal experience I have never found a Ps2 to usb adapter not to work. I used it for multiple devices on both ends (using it on Ps3 with a PS2 keyboard or mouse, for example).

It's also the dell keyboard is defunct.

Are you using a PS2 keyboard or a USB keyboard ? Check your connection, if you are using a PS2 keyboard, plug in a USB keyboard and see if that works

are you using a ps2 keyboard or a USB keyboard ? if yours is a usb .... and do not have a ps2 connected. you will get the above message. keyboard will work but error on screen.

Hi,
You dont specify weather it's a ps2 or a USB keyboard.
First try setting your bios back to bios default. If it's a USB keyboard make sure all USB ports are working in device manager. If its a PS2 keyboard(round plug) try using a USB keyboard which can be bought for a few dollars.

Best wishes,
Graemevm

Try another PS2 keyboard.
Try a USB keyboard with a PS2 adapter.
Try resetting the bios using the jumper on the motherboard.
Try removing all of the dust you can from inside the case, reseating all the components and going through the process again. If you can't get it to recognize that a keyboard is installed and can't get the bios to continue despite the no keyboard error you'll have to replace the motherboard.

Hi abcd_21;
Is that a usb keyboard or a PS2 keyboard? if its a PS2
kindly Do these steps below:
1. remove keyboard PS2 from PC
2. restart PC, and observe if you see the error "no keyboard detected"
3. turn the pc off
4. attach the PS2 kayboard then Turn ON.

if its a USB:
1. remove usb
2. restart pc
3. plug the usb in when the pc has completely booted up.
4. wait for the found new hardware icon to detect your usb