So I had a major issue with some wireless keyboards and the Number Lock. For some reason, at start-up it was turn on by default and when the user wanted to log into the machine it kept stating that they had the wrong password. So I search online, and found a simple solution:
Click Start, click Run, and type regedit to open the Windows registry editor. In the registry, open the below folders.
Within the keyboard folder, you should have a string value named “InitialKeyboardIndicators” with a value of 0, 1, or 2. Below is the explanation of each of these values:
0 = Num Lock is turned OFF after the logon.
1 = Disable Num Lock.
2 = Numlock is turned ON after the logon.