Ext Drive Lost it's Way

JerometheGiraff

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I have an external HDD that works on any other machine I test it on, except mine. It was working and for some reason I recently needed to use it and it didn't work. It appears in device manager but not in disk management. A drive letter might not be assigned to it, I can't see it in disk management to assign a drive letter to it.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Built
OS
Windows 10 Pro
CPU
Core2Quad (2.6 Ghz)
Motherboard
nVidia 775
Memory
8 Gigs DDR2
Graphics Card(s)
Geforce Titan Black
Sound Card
Motherboard Audio
Monitor(s) Displays
25" Asus LCD
Screen Resolution
1680x1050
Hard Drives
120 Gig SSD
60 Gig SSD
750 Gig HDD
PSU
850 Watts
Case
Mid-Size
Keyboard
Logitech
Mouse
Logitech - I love logitech mouses
Internet Speed
DSL 25Mbps - Although extremely expensive
Antivirus
Microsoft Anti-Virus
Browser
FireFox 36.x
Windows can get "confused" by all the old (and sometimes conflicting) USB storage driver data that tends to collect and remain installed on a PC.

Download drivecleanup.zip v0.8.1 from Drive Tools for Windows and extract it to a folder. You will find drivecleanup.exe, one for the 32bit Windows and one for 64bit Windows.

Unplug all USB devices in your system ( except the Mouse and Keyboard)

Right click on the appropriate one for your system and Run as Administrator.

This will remove all the non-present devices and all the corresponding registry entries left by them. You will now be starting with a clean slate.

Reboot your system and then plug-in your drive.

The necessary driver will be installed and your drive should be ready for use.

( I am not sure whether this will resolve your problem but there is absolutely no harm in trying it. I use this utility periodically to flush out the non-present devices and the driver references for these to avoid any problems.)
 

My Computer

OS
Windows 7 Home Premium 32 bit
I have an external HDD that works on any other machine I test it on, except mine. It was working and for some reason I recently needed to use it and it didn't work. It appears in device manager but not in disk management. A drive letter might not be assigned to it, I can't see it in disk management to assign a drive letter to it.

USB, I assume.

Does it show up in DiskPart?
If yes, then in diskpart,you can use the ASSIGN Letter=J
as an example which would assign the letter J to the currently selected volume.

WIN | type CMD | do NOT hit ENTER | CTRL + SHIFT + ENTER keycombo | ALT + Y keycombo

type following and hit Enter
DISKPART

type and hit ENTER
LIST VOLUME


from the list of volumes, find the one that corresponds to your external drive.
type and hit enter
SELECT VOLUME 8
here 8 is an example, you enter the correct volume number

type and hit enter
DETAIL VOLUME
this will reassure that you have the correct volume

type and hit enter
ASSIGN LETTER=K
here "k" is an example. Use the letter of your choice.

type and hit enter
EXIT
to exit the diskpart program

type and hit enter
EXIT to exit the command shell
 

My Computer

Computer Manufacturer/Model Number
Toshiba Satellite S875D-S7239 laptop
OS
MS Windows 7 Ultimate SP1 64-bit
CPU
AMD A10-4600M
Motherboard
AMD Pumori (Socket FT1)
Memory
6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)
Graphics Card(s)
AMD Radeon HD 7660G
Sound Card
High Definition Audio Device
Monitor(s) Displays
Generic PnP Monitor (1600x900@60Hz)
Screen Resolution
1600x900@60Hz
Hard Drives
SSD 119GB Corsair CSSD-V128GB2 ATA Device
Keyboard
Standard PS/2 Keyboard
Mouse
HP Wireless Optical Mobile Mouse Model FHA-3410
Internet Speed
What the local pub, local coffee shop offers.
Other Info
Optical Drive:MATSHITA BD-CMB UJ160B ATA Device


Also have an Asus ha1002xp netbook with Win 7 Ultimate installed.
None of those options worked. It is listed, no drive letter to read the content.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Built
OS
Windows 10 Pro
CPU
Core2Quad (2.6 Ghz)
Motherboard
nVidia 775
Memory
8 Gigs DDR2
Graphics Card(s)
Geforce Titan Black
Sound Card
Motherboard Audio
Monitor(s) Displays
25" Asus LCD
Screen Resolution
1680x1050
Hard Drives
120 Gig SSD
60 Gig SSD
750 Gig HDD
PSU
850 Watts
Case
Mid-Size
Keyboard
Logitech
Mouse
Logitech - I love logitech mouses
Internet Speed
DSL 25Mbps - Although extremely expensive
Antivirus
Microsoft Anti-Virus
Browser
FireFox 36.x
Just to confirm, this problem only happens on your computer? If so, and the drive works elsewhere, do other USB devices work on your computer?
 

My Computer

OS
Windows 7 Ultimate x64 SP1
CPU
Intel Core i7-2600
Motherboard
Gigabyte GA-P67A-UD3P-B3
Memory
12 GB Patriot Extreme DDR3-1333
Graphics Card(s)
Nvidia GTX 470
Monitor(s) Displays
Dell UltraSharp 2209WA
Hard Drives
OCZ Agility3 240 GB, WD5001AALS, WD7501AALS
PSU
OCZ ModStream 700W
Case
CoolerMaster HAF 912 Advanced
Cooling
CoolerMaster Hyper 212 Plus
Just to confirm, this problem only happens on your computer? If so, and the drive works elsewhere, do other USB devices work on your computer?

The problem only happens on my computer and all other USB devices work. I can see the USB drive in device manager, but not in file explorer as a drive letter.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Built
OS
Windows 10 Pro
CPU
Core2Quad (2.6 Ghz)
Motherboard
nVidia 775
Memory
8 Gigs DDR2
Graphics Card(s)
Geforce Titan Black
Sound Card
Motherboard Audio
Monitor(s) Displays
25" Asus LCD
Screen Resolution
1680x1050
Hard Drives
120 Gig SSD
60 Gig SSD
750 Gig HDD
PSU
850 Watts
Case
Mid-Size
Keyboard
Logitech
Mouse
Logitech - I love logitech mouses
Internet Speed
DSL 25Mbps - Although extremely expensive
Antivirus
Microsoft Anti-Virus
Browser
FireFox 36.x
None of those options worked. It is listed, no drive letter to read the content.

I do not understand your answer.

Did your usb drive show up in diskpart? Yes/No.
 

My Computer

Computer Manufacturer/Model Number
Toshiba Satellite S875D-S7239 laptop
OS
MS Windows 7 Ultimate SP1 64-bit
CPU
AMD A10-4600M
Motherboard
AMD Pumori (Socket FT1)
Memory
6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28)
Graphics Card(s)
AMD Radeon HD 7660G
Sound Card
High Definition Audio Device
Monitor(s) Displays
Generic PnP Monitor (1600x900@60Hz)
Screen Resolution
1600x900@60Hz
Hard Drives
SSD 119GB Corsair CSSD-V128GB2 ATA Device
Keyboard
Standard PS/2 Keyboard
Mouse
HP Wireless Optical Mobile Mouse Model FHA-3410
Internet Speed
What the local pub, local coffee shop offers.
Other Info
Optical Drive:MATSHITA BD-CMB UJ160B ATA Device


Also have an Asus ha1002xp netbook with Win 7 Ultimate installed.

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Built
OS
Windows 10 Pro
CPU
Core2Quad (2.6 Ghz)
Motherboard
nVidia 775
Memory
8 Gigs DDR2
Graphics Card(s)
Geforce Titan Black
Sound Card
Motherboard Audio
Monitor(s) Displays
25" Asus LCD
Screen Resolution
1680x1050
Hard Drives
120 Gig SSD
60 Gig SSD
750 Gig HDD
PSU
850 Watts
Case
Mid-Size
Keyboard
Logitech
Mouse
Logitech - I love logitech mouses
Internet Speed
DSL 25Mbps - Although extremely expensive
Antivirus
Microsoft Anti-Virus
Browser
FireFox 36.x
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