Download the Keyboard Locker and Unzip files from the folder at your desired location.
You’ll see a number of icon files, a text document, a .akh script file and a .exe application file — the latter two are the more important ones.
If you don’t have AutoHotKey installed, go for the ‘Keyboardlocker.exe’ application file, which is a standalone program enabling you to lock and unlock the keyboard.
Once the Keyboard Locker is activated, an icon will appear in the taskbar app icon tray.
To lock a keyboard after running the application, you’ll need to press ‘CTRL+ALT+L’ and the icon will change.
To unlock, you’ll have to type ‘unlock’ from the locked keyboard. Sometimes unlocking can take several seconds, so no need to panic, your keyboard will unlock eventually.
If you already have AutoHotKey installed, you can just run the ‘.ahk’ script. More so, people familiar with the AutoHotKey can edit the script to create custom shortcuts for locking and unlocking the keyboard.