External 2.5" usb drive not showing up?

ponder

ponder

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This drive works fine on my pc but not a friends that also owns it. Both Win10 up to date.

If he connects the drive he gets the usb insertion sound but it does not appear in explorer. It appears as Z: or Sunplus elsewhere.

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Daruk said:
You'll have to explain a bit... where are all those images from - the working computer or the non-working computer?
What are you expecting to see in the first image... I assume it doesn't show up there at all - i.e. it's not in that image?
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All from the non-working computer.
Removeable Z: 320GB NTFS partition
 
Daruk said:
Just updated my post. Try rebooting with it already connected...
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That does not work either, tried it in different ports, updated MB drivers. I've never in my life seen this before.
In disk management it will allow you to change the drive letter but you have no options to format it etc.
 
Daruk said:
That is kind of bizarre. The issue I had with mine is bizarre too - it just fails if you insert it while Windows is on, but sees it fine in Linux or when Windows is rebooted. I suspect it's a clash with the driver and the machine's USB driver.
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I also installed the latest MB all in on driver package after trying to update the drive & usb drivers from windows.
 
I would try the following items if it is a mechanical drive:

1) Connect the drive to the pc where it works and run 'chkdsk z:' from the command line. It will scan the file system and report any errors that may exist. Backup the contents of the drive before running the repair option, i.e. '/f'.

2) Use Smartfan to view the SMART information that is stored on the drive. If there are low level problems with the drive, it might show up as an error. It might be necessary to connect the drive directly to your computer's motherboard in order to read it.

3) Try a tool called Find and Mount which can scan for partition table information on a disk and then mount it.

4) If all else fails, backup the contents and then perform a full (not quick) format. It will take a long time, but the format will try to write to all sectors on the disk. Bad sectors and intermittent problems could be early signs that it is time to replace the drive.
 
bobcpt said:
I would try the following items if it is a mechanical drive:

1) Connect the drive to the pc where it works and run 'chkdsk z:' from the command line. It will scan the file system and report any errors that may exist. Backup the contents of the drive before running the repair option, i.e. '/f'.

2) Use Smartfan to view the SMART information that is stored on the drive. If there are low level problems with the drive, it might show up as an error. It might be necessary to connect the drive directly to your computer's motherboard in order to read it.

3) Try a tool called Find and Mount which can scan for partition table information on a disk and then mount it.

4) If all else fails, backup the contents and then perform a full (not quick) format. It will take a long time, but the format will try to write to all sectors on the disk. Bad sectors and intermittent problems could be early signs that it is time to replace the drive.
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1-2 I already did before, all fine. Can't travel so won't have physical access to it for a while.
 
Use USBdeview and delete the USB device from the PC then plug it back in.
 
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