Hi,
When I
upgraded my system to Windows 8.1 I found everything to be perfect and was very
happy. However after a while my happiness eloped. The reason was my keyboard. I
still have a TVS Gold PS/2 keyboard which I found out was not working after the
upgrade from Windows 7 to Windows 8.1. Initially I thought that there is
something wrong with my keyboard and wanted to buy a new one, however just
before that I did some research and got to know that there is a problem with
windows 8.1 with PS/2 devices. After few research I found the fix. Please find
the symptoms below:
1. The
keyboard will work in BIOS setting mode
2. In the
device manager (devmgmt.msc) you will not see keyboard listed.
Workaround:
Since the keyboard is not working, you need to open the on-screen-keyboard from
the ease of use menu.
Resolution:
1. Open
registry editor window by typing regedit in run window.
2. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\i8042prt,,
3. Edit the Startvalue
and set it to a hex or decimal value of 1.
4.
Reboot
5. Change
to a PS/2 keyboard via the Keyboards section in Control Panel.
6. Also
just do the driver update in this window. The final message will still say that
you have the latest driver for this device, however the purpose of doing this
is, it refreshes the driver and you will see the keyboard option in device
manager window.
Enjoy