I have a Dell inspiron 15 and it says there is no operating system on my laptop! Help! I don't have cursor either

[mcstack00]

Intrenal hard disc drive not found
to resolve this issue,try to reset the drive.
No boot able devices --strike F1 to retry boot,F2 enter Setuo menu,F5 enter PSA

 

[Nick501]

Intrenal hard disc drive not found
to resolve this issue,try to reset the drive.
No boot able devices --strike F1 to retry boot,F2 enter Setuo menu,F5 enter PSA

Upon booting enter the diagnostics menu (should be an option at the bottom of the screen, or an option in the boot menu) once here run a hard drive test (choose a quick check) and make sure that the hard drive is working properly, in the event that it is simply reinstall your operating system off of a flash drive and get all your drivers set up.