I was just told that PS2 Keyboards aren't compatible with windows 10.

Is this true. I was under the impression that they should work fine?

  • 3
    Where did you read that PS2 keyboards and mice don't work with Windows 10?
    – Ramhound
    Nov 4, 2015 at 16:15
  • The company my parents bought their new PC from said that. (I didn't believe them but didn't have any proof at the time)
    – unknownSPY
    Nov 4, 2015 at 16:20
  • 1
    If the PC has a PS2 port then it will work on any operating system the PC supports.
    – Ramhound
    Nov 4, 2015 at 16:22
  • 1
    Well that what I thought. The reason it was questioned was that when they plugged their (working) PS2 keyboard into the PC, it didn't work.
    – unknownSPY
    Nov 4, 2015 at 16:23
  • 4
    PS2's nature is that a keyboard or mouse will only work when it is plugged in and then the pc is booted up. Unplugging the device then reinserting the plug never worked, you always needed to reboot.
    – LPChip
    Nov 4, 2015 at 17:05

3 Answers 3


According to Microsoft, Windows 10 does still accept PS/2 inputs. However there might be issues with drivers, this forum discussion explains the process for troubleshooting it.

Below is a direct quote from the Microsoft engineer in that thread detailing the various troubleshooting methods:

Method 1.

Plug the device and run the hardware troubleshooter. Once this is done, restart the computer and check the status.

Follow these steps:

  • Press the ‘Windows + W’ key on the keyboard.
  • Type troubleshooting in the search box and then press enter.
  • Click hardware and sound and run the Hardware and Devices Troubleshooter.
  • Follow the On screen instructions. Once this is done, restart the computer and check the status.

Method 2.

You may update the PS2 mouse driver from Device Manager manually and check if this helps.

  1. Press (Windows key + X) and click on “Device Manager”.

  2. Expand “Mouse” or “Mice and other pointing devices”.

  3. Right click on the driver and select “Update Driver Software”. Once this is done, restart the computer and check if the issue persists.

Further, you may also look for optional updates in Windows Updates to see if there are any additional updates related to this device and install them as required.

Method 3.

If the driver update does not help then I would suggest you to completely uninstall the USB driver and reinstall it to check if this helps.

Follow these steps.

  • Press “Windows key + X” and click on “Device Manager”.

  • In the list of devices, you should see the “Mouse” or “Mice and other pointing devices”.

  • Right click on the device driver and then select "Uninstall".

  • In the uninstall dialog, make sure you select the option to delete the driver package from the system. This causes the driver package installed earlier to be deleted.

  • In the Action menu of Device manager, select “Scan for Hardware changes” option. This will force the computer to recognize any hardware changes. Once the driver is installed, close all windows and restart the computer.

I don't have a PS/2 keyboard to test these for you.

  • 2
    For me, "Windows key + W" in Method 1 brings up WINDOWS INK WORKSPACE.
    – Scooter
    Feb 8, 2017 at 20:23
  • Tricky if one just has a PS/2 keyboard to enter the password to log on..?
    – nsandersen
    Nov 1, 2017 at 10:01
  • you'll need to have a USB keyboard to do the troubleshooting like this (or better, with USB mouse as well)
    – Tomofumi
    Aug 13, 2019 at 8:35
  • Doesn't work. This shouldn't be the selected answer. I've worked on hundreds of win10 machines, Guest's answer below is correct. Apr 24, 2020 at 3:43
  • It might be a co-incidence, but yesterday Windows 10 installed some update and since rebooting my PS/2 keyboard is not detected any more; not even in BIOS.
    – U. Windl
    Jan 4, 2021 at 7:45

If it doesn't work with a simple plug and play, do this:

  1. Open Regedit.
  2. Navigate to: HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Services > i8042prt
  3. Set the default value for "Start" to 1.
  4. Restart your machine.

Adding to Guest's answer:

In the Registry Editor, under Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt, the Start key should be changed from 3 to 1.

More detail about what the settings mean (from http://sourcedaddy.com/windows-7/values-for-the-start-registry-entry.html):

Value Start Type Description
0 Boot Specifies a driver that is loaded (but not started) by the boot loader. If no errors occur, the driver is started during kernel initialization prior to any non-boot drivers being loaded.
1 System Specifies a driver that loads and starts during kernel initialization after drivers with a Start value of 0 have been started.
2 Auto Load Specifies a driver or service that is initialized at system startup by Session Manager (Smss.exe) or the Services Controller (Services.exe).
3 Load on Demand Specifies a driver or service that the Service Control Manager (SCM) will start only on demand. These drivers have to be started manually by calling a Win32 SCM application programming interface (API), such as the Services snap-in.
4 Disable Specifies a disabled (not started) driver or service.
5 Delayed Start Specifies that less-critical services will start shortly after startup to allow the operating system to be responsive to the user sooner. This start type was first introduced in Windows Vista.

I had a PS/2 touchpad that was unresponsive in Windows 10. After changing this key to 1 and rebooting, the touchpad now works.

  • 1
    Great, the SkyJT-338 is back in business! :) Oct 16, 2020 at 7:06
  • Remember, when you turn off the computer, do it with the uppercase shift pressed, otherwise it may not turn off but hibernate and not apply the change. May 1, 2021 at 19:14
  • 1
    IT WORKS! What a lifesaver, thank you so much for this
    – dialex
    Apr 9 at 21:40

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