Category: Windows

Windows 10: NUMLOCK on startup registry key

Windows 10: NUMLOCK on startup registry key

In previous versions of Windows, the NumLock keyboard key could be set ON at startup in the system BIOS settings.  Here is the registry key to change num lock key behavior for all users in Windows 10.

Registry Key to turn Num Lock ON at Startup

The default value for the registry key InitialKeyboardIndicators is “2147483648”

Steps to change Num Lock key behavior in Windows 10

  1. Click Start and type “regedit”
  2. Click on and run regedit
  3. Navigate to HKEY_USERS\.DEFAULT\Control Panel\Keyboard
  4. Double-click the registry key InitialKeyboardIndicators
  5. Change the value to “2” for ON, click OK and close regedit
  6. Reboot the Computer


Here are the possible values for InitialKeyboardIndicators

0NUMLOCK is off.
2NUMLOCK is on.
Synaptics Touchpad stops working after recent Windows 10 updates

Synaptics Touchpad stops working after recent Windows 10 updates

I recently installed the final release version of Windows 10 on an HP Pavilion 15z-n200 laptop. This is a lab machine used for testing application compatibility with Windows 10. I downloaded Windows 10 and created an Installation USB drive using the instructions found here. The installation was successful and everything worked until I installed the 4 recently released Windows Updates (KB3081436, KB3087916, KB3074686, and KB3074678) for Windows 10. The Synaptics Touchpad stopped working and Device Manager was reporting a problem with the Device Driver for “Synaptics PS/2 Port Compatible TouchPad”. The error reported was “The device cannot start. (Code 10)”.

I attempted to Update Driver Software via Windows Update with no luck. Next, I turned to the HP 15z-n200 drivers page. There is curently no Synaptics Touchpad driver listed for Windows 10 but I tried the one for Windows 8.1 (filename: sp64226.exe). When I tried to install the driver it reported that a newer version was already installed.

Next, I turned to the Synaptics website and downloaded their generic driver (filename: which also resulted in the same “newer version of the driver already installed”.

After some digging I read others were experiencing similar problems with a Toshiba laptop after the Windows Updates. I tried a suggestion to install the Toshiba provided Synaptics Driver (filename: os2013231a_tc00558600b.exe), rebooted, and the Touchpad mouse was working again. Ok, on with the testing!

Keywords: Mouse not working in Windows 10