Laptop Crash

[Sander Van Dam]

Hi guys, well yesterday i rebooted my laptop. It was crasing a lot and it had bugs. I let it do its thing and after when it was done it said

"An operating systeme wasnt found. Try disconnecting any drives that dont contain an operating systeme."

I have nothing connected and it sill gives me that message. I dont know what to do, can someone help me? I have an Hp Pavilion Entertainement PC, 

[Villanity]

This is  (sadly) due to corrupted OS.You need to reinstall the Operating System.

[Mr XHD]

Yes @Saurabh Sharma is right, you need to reinstall your operating system. Sorry.