Can someone Tell me what this means please

[Mark M]

Hi all,
On startup recently have been presented with a blue screen, with a message saying the system intruded and the chassis was tempered. Please check your settings. Once I do that it starts fine.

Can someone please tell me what you think may be going on with my computer please.

Thanks
Mark

 

[_-..zKiLLA..-_]

go into bios and turn the option that notifies u if ur case was opened, then it should be fine