I just got my new Lenovo notebook (T430s). Compared with the previous version of this laptop, one important change is the keyboard. Lenovo now favors the chiclet or island style “Precision” keyboard. No page up and down in the upper right corner and the delete key in the upper most right corner next to the insert key.

I never use the insert key and often hit it accidentally.

 

I looked for ways to disable the insert-key (I can’t remember I have ever used it in the past years). I found the following (taken from http://superuser.com/questions/31794/windows-insert-key-anti-functionality-accidentally-triggers-how-to-stop-it-perm ):

 

Almost anyone who has used a wordprocessor has accidentally hit the Insert key and overwritten when they thought they were editing. This article describes a simple way to disable the Insert key on your keyboard.

Whenever you press a key, a windows message is created, which contains a key code that uniquely identifies the key pressed. Programmes (like Microsoft Word) look for keypress messages and take actions based on the key code in the message. By mapping the insert key press event to null, windows send a message containing null for the key code when the Insert key is pressed. Programmes receiving the message, therefore, do not perform the action associated with an insert key press event, freeing you from having to worry about overwriting things again.

Optional: you can take the Insert key off of your keyboard when done.

 

If you do this with Windows7 regedit, you have to enter the hex value in rows of 8 bytes, like this:

EDIT correction for the address