Hard drive issue

[Uttam256]

When i open my pc it open with a error message i .e no bootable device found and no Operating system found this is happening from yesterday i want my all data safely.

Please anyone help me .

[WAWood]

@Uttam256 

It's probably already too late -- as that error message tends to indicate a failing, or already failed, drive -- and if that is the case, your data may be gone with it.

If your PC is new enough to support UEFI, you can use these steps to test the hard drive: http://support.hp.com/us-en/document/c00439024

If not, to check the drive you have to follow these steps:
1) Press Esc key repeatedly, several times a second, while rebooting the laptop. Do NOT hold the key down, just press it over and over.
2) Eventually, you will see an HP Startup Menu
3) Press the Function key for testing the hard drive (usually F2) and let it run.