External hard drive not showing up on pc

How to fix this ?
brian ramdhaniCT Technician Asked:
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Tom CieslikIT EngineerCommented:
Are you sure hard drive is working ?
Try to test it using different USB port or different computer.
Sometimes electronic converter from USB to SATA not working correctly so you can try to remove HDD from enclosure and connect it using another USB to SATA converter
For small 3.5" disks you can use this one
https://www.ebay.com/itm/Lumsing-USB-3-0-to-SATA-22-Pin-HDD-SSD-Hard-Drive-Disk-2-5-inch-Adapter-Cable/132095157036?hash=item1ec17c232c:g:r2cAAOSw4A5YoZA6

For regular size HDD you can use this one
https://www.ebay.com/itm/IDE-SATA-to-USB-2-0-Adapter-Converter-Cable-for-2-5-3-5-Inch-Hard-Drive-HD-HDD/201386003408?epid=1775990349&hash=item2ee38a8bd0:g:iFQAAOSw3ydVrF~v


or directly to computer using SATA cable
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Thomas Zucker-ScharffSolution GuideCommented:
have you looked to see that disk manager is assigning it a drive letter?

win10  - right click windows menu and choose disk management
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brian ramdhaniCT Technician Author Commented:
I went in disk mgmt

It is showing up as a 2 TB drive and it is only a 320 gig HD

WHEN I right click it I can only choose properties
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brian ramdhaniCT Technician Author Commented:
Ing
Check disk one
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Thomas Zucker-ScharffSolution GuideCommented:
From that picture, it looks like it hasn't been formatted.  Is this the first time you are using it?  Is there anything on there?  If there is nothing on there you may want to format it in NTFS to see what the system does and that way it can get assigned a drive letter.
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brian ramdhaniCT Technician Author Commented:
It has lots of stuff on it
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brian ramdhaniCT Technician Author Commented:
This is over 5 years old
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Tom CieslikIT EngineerCommented:
Information about file allocation is damaged or destroyed probably do to USB/SATA converter error.
If you going to initialize disk You'll loose all information, so if you don't care about it, just do it.

If you want to restore some information you must use some data recovery software like GetDataBack or similar
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Thomas Zucker-ScharffSolution GuideCommented:
The real question is how precious is the data.  I have found that in a majority of cases similar to this it is the housing that is the problem.  I have taken the drives out of the external cases and found them to be perfectly fine.    If you are comfortable doing that, it may be your best option.  You will also need a way to connect the drive after you have taken it out of the housing.  If you don't have a drive cradle, you can attach it internally, as long as your computer has extra connectors (power and data).
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nobusCommented:
select the external drive - right click it and assign a drive letter to it
and post soem info disk model - how is it connected?  usb 2 or 3 - or external sata ? or san ?
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Thomas Zucker-ScharffSolution GuideCommented:
@nobus

From the picture the op posted it looks like the os is not detecting size correctly.  Since there is no option,  apparenly, to sign a drive letter,  one needs to look at Putney possibilities.  

All,
It is possible that the best way to do this right now would be to create a live Linux boot usb or DVD and not from that - if a Linux machine is not available.
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brian ramdhaniCT Technician Author Commented:
If I boot from a Linux usb it may be able to access the flash drive contents ?
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Thomas Zucker-ScharffSolution GuideCommented:
Yes, although I usually do it from a Linux box, or a drive cradle.
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nobusCommented:
i would hook it to a working pc - and check if it still shows bad then
alternatively, you can run a diag on it

** you did not post any info on the disk, as i asked
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Thomas Zucker-ScharffSolution GuideCommented:
@nobus,

You mean another working PC?  My impression was that the OP encountered this problem when hooking it up to a working PC.  If you mean another one - yes that is a good idea, especially one with a different version of windows.  I have one PC with windows 7 on it just for this purpose, and another with Linux on it for a similar purpose.  You can simulate this by using virtual machines though, or by booting from a multiboot USB like easy2boot.

Tom
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nobusCommented:
>>  y impression was that the OP encountered this problem when hooking it up to a working PC.  <<  that's your impression - but he told us nothing exact
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brian ramdhaniCT Technician Author Commented:
Yes I did hook it up to another pc
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Thomas Zucker-ScharffSolution GuideCommented:
have you tried a Linux boot yet?
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nobusCommented:
and there it worked ok ?
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brian ramdhaniCT Technician Author Commented:
Didn't try Linux yet. Will it work on a Mac ?
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Thomas Zucker-ScharffSolution GuideCommented:
It might work and should work.  MACOS is Linux based.  The reason I suggest Linux, is that you can get rid of anything that may be hampering the drive from mounting.  MACOS has other mounting protocols.
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brian ramdhaniCT Technician Author Commented:
Ok well I have an iMac at home. Will try it
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