Media failure, disk error or no disk replace

[A-CUBE]

I have this HP Elitebook 2540p perfectly working until recently it started showing some weird messages I don't really know how to get rid of. Each time I boot it some weird write up comes up like : what's on the attached file. 

I reload the OS to no avail, change the hard-drive no positive result. 

• Often times,  I goes into the bios and exit without doing anything, it then boot up very fine.  What could be the challenge here. please I need help

   

  

   

[Paul_Tikkanen]

Hi:

Those errors normally mean that you have lost the operating system on the hard drive, or the hard drive has failed.

Try reinstalling Windows on the existing hard drive.

If it won't install, replace the hard drive and reinstall Windows.

Below is the link to the service manual.

h10032.www1.hp.com/ctg/Manual/c02664684

[A-CUBE]

Thanks for your, but I have reinstall the OS no positive result, changed the hard-drive no positive result. What I mostly does is, each time I boot this PC I'll have to strike the f10 key to take me to the bios. I then navigate to the system configuration >>>device configuration >>>Sata Device Mode and will have to change it from AHCI to IDE save and exit bios, then repeat the process again but this time I'll have to move from IDE back to AHCI save again and exit. Then the PC will boot normal. But I'm just tired of this weird behavior and the process involved in. 

Please I'm still looking forward to more suggestions. Thanks 

[Paul_Tikkanen]

You're very welcome.

That is definitely some weird behavior.

Unfortunately, I wouldn't be able to help you with that issue.