Olá Marcos, o Windows 10 desabilita as entradas PS/2, por isso não funciona, mas vc pode corrigir facilmente pelo regedit, salve as entradas abaixo como a extensão .REG e execute, reinicie a maquina e pronto, as entradas PS/2 irão funcionar no W10.
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\i8042prt]
"ImagePath"=hex(2):5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,\
74,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,64,00,72,\
00,69,00,76,00,65,00,72,00,73,00,5c,00,69,00,38,00,30,00,34,00,32,00,70,00,\
72,00,74,00,2e,00,73,00,79,00,73,00,00,00
"Type"=dword:00000001
"Start"=dword:00000001
"ErrorControl"=dword:00000001
"Group"="Keyboard Port"
"Tag"=dword:00000005
"DisplayName"="@keyboard.inf,%i8042prt.SvcDesc%;i8042 Keyboard and PS/2 Mouse Port Driver"
"Owners"=hex(7):74,00,65,00,72,00,6d,00,6b,00,62,00,64,00,2e,00,69,00,6e,00,66,\
00,00,00,6d,00,73,00,6d,00,6f,00,75,00,73,00,65,00,2e,00,69,00,6e,00,66,00,\
00,00,6b,00,65,00,79,00,62,00,6f,00,61,00,72,00,64,00,2e,00,69,00,6e,00,66,\
00,00,00,00,00
"PnpFlags"=dword:00000002
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\i8042prt\Parameters]
"PollingIterations"=dword:00002ee0
"PollingIterationsMaximum"=dword:00002ee0
"ResendIterations"=dword:00000003
"LayerDriver JPN"="kbd101.dll"
"LayerDriver KOR"="kbd101a.dll"
"OverrideKeyboardIdentifier"="PCAT_101KEY"
"OverrideKeyboardType"=dword:00000007
"OverrideKeyboardSubtype"=dword:00000000
"KeyboardFailedReset"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\i8042prt\Enum]
"0"="ACPI\\PNP0303\\4&2e2b2fdc&0"
"Count"=dword:00000001
"NextInstance"=dword:00000001