Similarly, if I pressed a key and held it for a while, it would also switch off. Whenever I stopped typing or using the keyboard, the Num Lock would switch off after about 5 or 6 seconds. I started paying closer attention to how the keyboard behaved and realized that it was not only happening in games or specific programs. I made sure that all these assistive settings were switched off, but no dice. Initially I thought that it was something to do with the keyboard setup in Windows, namely the Ease of Access settings which can help make it easier to use your PC. It fully dawned on me only when I started playing DOTA 2 and especially World of Tanks as the controls did not behave the way you would expect them to. At the same time there was a subtle sound notification playing in the background, but that too did not quite ‘click’ for me at first. I first noticed that my Num Lock LED was blinking but I did not pay it much attention, thinking that it was software related and that some programs automatically turned it off or on. This was quite annoying, particularly in games, as when it switched off it would sometimes take two key presses for it to switch on again and as you can imagine this lead to all sorts of difficulties. My keyboard-just a basic, simple USB Microsoft Wired Keyboard 200-would seemingly just randomly switch on and off. I have been having a strange problem on my new PC which runs on Windows 8.1.
