Hard disk problem

[Sumitl993]

Problem with hard disk. On 1 august 2018 i had changed hard disk when your assistant came to replace the hard disk. Now in my pc the problem is desktop showing " ERROR : No boot disk has been detected or the disk has failed. " And i have checked in the " hard drive check" option but it's showing 

Testing Drive: 1

SMART Check : NOT AVAILABLE

Short DST : NOT AVAILABLE

It means the hard disk may be loosen to i went to the shop, from when u bought this pc , and he even tighten the hard disk but still having the same problem. What to do please help me and reply me ASAP. And i want to talk to you customer service so provide me the number or contact me on 9929711514. Please.

[Lil_Boy_Blue]

Hi

Please delete your phone number.

https://www8.hp.com/us/en/contact-hp/ww-phone-assist.html

First:- Turn off the computer, press and hold the PWR button for 4 seconds.

Then - Leave only keyboard and mouse connected, disconnect all externally connected
devices such as Docking Station, USB storage devices, displays, and printers.
Unplug the AC adapter from the computer.

Next - Press and Hold the Power button for 15 seconds to Hard Reset.
Rinse and Repeat; Re-Connect the AC adapter.

NOW begin checking/testing/proving the Hardware is fit for purpose.
Power on your PC, press ESC (repeatedly), then F2 at the prompt.
Choose System Tests (Fast Test does a 4 minute hardware check).
~~~~~~~~~~~~~~~

You have a  HP All-in-One - 20-c010il

https://support.hp.com/gb-en/product/hp-20-c000-all-in-one-desktop-pc-series/10734600/model/11623619

Manuals and support are available if you click on the above link.

Spare part numbers are here...

http://partsurfer.hp.com/Search.aspx?searchText=W2U06AA

Hard Drive replacement  --   http://h10032.www1.hp.com/ctg/Manual/c05145971

If in doubt please ask.