Fix the problem with the left control key that doesn’t work in Windows 10. Finally, you should come across a method that solves the problem, regardless of the cause. Below you will find several different repair strategies that other users have successfully used in a similar situation to restore the normal functionality of the left Ctrl key.įor best results, we recommend that you follow the possible repairs listed below in the order, as we have categorized them by their effectiveness. If you are looking for a solution to this problem, in this article you will find several repair strategies to help you solve the problem. Affected users reported that they were able to resolve the problem by reinstalling the driver using Device Manager. In this case, you can solve the problem by installing all pending WIndows updates – this will allow you to install a patch for the problem.Ĭorrupt / Unsuitable HID driver – The HID driver is often responsible for this problem.Ī corrupted instance can impair the functionality of some buttons. The problem is caused by a faulty Windows update – There is a certain Windows update that adds extra keyboard shortcuts that are known to cause this problem with the left Ctrl key.

The easiest test to find out if this is true is to plug in another keyboard and see if the problem continues to occur. Physical keyboard problem – Before focusing on other possible culprits, affected users should first make sure that they are not dealing with a defective keyboard. Here’s a shortlist of possible culprits that may be responsible for this problem: It turns out that several different situations can lead to this problem. We looked at various user reports and analyzed various repair strategies commonly recommended by concerned users. What is the cause of the “left CTRL key does not work” problem on Windows?

Upgrade to the latest version of Windows.

Check to see if there is a physical problem.

Fix the problem with the left control key that doesn’t work in Windows 10.

What is the cause of the “left CTRL key does not work” problem on Windows?.

Ctrl key locked