Unmounted Hard Disk for No Reason - PC Technical Support - HWzone Forums
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Hard disk disappears (unmount) by itself for no reason


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Hello everyone,


Not sure there is a connection but before I describe the problem it should be noted that I went into Disk Management and started formatting the drive (WD30EFRX) and after a short time I clicked Action -> Refresh which caused the formatting to stop and the drive disappeared.


Do not know if this is the reason but from that moment this is what happens:


After a computer restart the drive is displayed and working.

Fast formatting works.

Performing full formatting causes the drive to disappear.

Copying files (at least a few GB) causes the drive to disappear.


When the drive disappears then I actually hear the speed of the disk slowing down or maybe even stopping, after a restart the drive reappears and the same story.

I performed chkdsk, did not resolve the issue.


Would appreciate help.



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Quote of Jabberwock

Full formatting causes writing on the entire drive in blank data.

That is, the phenomenon occurs when the disk tries to write to a specific place ...

Download the manufacturer's tester from western digital




I ran at night and I attach the result.

I understand this is the final sentence?


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