HDD cannot detect

Try removing the hard disk and check if after removing HDD is must show "Boot Device Not Found" , if it shows the same it means your HDD is faulty or loose connect try reconnecting it , if remain same replace the HDD. This problem happen in common due to HDD failure as system keep on trying to detect the connected HDD but unable to detect it.

try running a check disk to check for errors. In windows command prompt type chkdsk C (substitute C for the letter of the drive).

Has anything happened to these drives such as dropping that would cause it to not be readable? What format is the disk FAT or NTFS?

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Hi,
HDD not Detecting only if you HDD data cable damage, HDD power Cable damage, HDD port damage, or HDD bad sector. But normally you change HDD data or power cable or mother board port. And i suggest mother board all connection disconnect and only HDD connect and open bios and search your HDD detected.

Thanks..
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check the bios setup for hdd detection if hdd detected in bios then reinstall or repair your OS

if hdd not detected by bios setup then you have to open hdd cover
you will find a fpc cable betwen hdd & mother board
just open the connector carefully & refit & apply a small tape pice on the connector lock after reinsert the cable

It sounds like the HDD controller may be bad.When you thought it was the OS having a problem it sounds like the controller was going out.Unless the HDD you were connecting to it was bad.

try in other's computer it may be due to virues too

Hi,
The laptop can not detect the hard drive please remove the hard drive and then reseat it if the problem persist then replace the hard drive.

If the drive is corrupted the data is useless.

check the jumpers of HD, they must be set on master

Check the cable(s) and jumper, all are connected as per the requirement. goto BIOS and detect the HDD from there, swap the HDD to any pc and try, if unable to detect then you may have to replace with new one.