Generally, personal computers have several security features and one of them is called “Chassis intrusion detection". The purpose of this feature is to detect the removal of the computer chassis from its place and alert you of this incident so that you may check whether your hardware is still there, especially the hard disk that contains all your data.
The chassis intrusion detection feature is very useful in large organizations where you can’t be sure whether your PC is safe from tinkering by unauthorized people. Chassis intrusion detection makes sure that you know your PC was handled by someone as soon as possible.
However, there are times when you simply don’t need this security feature to be enabled on your computer. Say, you’re at home, where there is absolutely no chance of anybody touching your PC for malicious purposes. Then, this security feature becomes a nuisance whenever you will open your computer chassis for hardware replacement or for any other reason. The feature will show you a chassis opening warning message every time you will start your computer so you may want to disable so that it won’t disturb you again.
Further in the article, I will outline the steps you will need to take to disable this feature. Please note that these steps are exactly applicable on Dell PCs, but if you have any other brand of computer, there will be a slight variation in the following steps.