disk boot failure insert system disk press enter

[Nenad Gorgiev]

this problem appeared to me yesterday run out of power in my place and inclusion electricity off 2-3 times in 2 hours and 2-3 times I power off the computer when running out and when I turned on my computer show this, choose whether this problem occurred due to running out of power several times I shut down your computer in 2 hours or maybe this problem is due to something else and if I can somehow fix this problem
Sorry if I have a problem with English grammar, thanks in advance

 

[Outlander_04]

Do yu have a floppy disk drive in your computer?

 

[Nenad Gorgiev]

No i don`t have floppy disk drive and I forgot to say that when I turn on the computer I hear noises (knocks) from the hard disk