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Windows 7: Can't access USB flash drive

05 May 2014   #1
Adams Seven

Windows 7 Professional 64
 
 
Can't access USB flash drive

I suddenly lost access to a USB flash drive while using my laptop on the road. The laptop went into hibernation; when I woke it up, the flash drive had suddenly disappeared. Plugging it into different USB ports didn't help ... or, for that matter, plugging it into USB ports on a different computer. When I plug it in, Windows sees that a removable drive is available, accurately reports it as a Silicon-Power 64G USB drive in Device Properties, and even assures me that it's working properly. But that's it. I can't check for errors, because Windows reports that it can't access the disk. If I try to access the flash drive with the command line, Windows reports 'There is no disk in the drive.' I downloaded the free recovery tool 'Recuva,' as recommended at: 6 data recovery tools for SD cards, USB drives and more - Computerworld and that didn't help. If anyone has any ideas, I hope you'll share them. My unhappy guess is that I either hire a professional data recovery firm, or kiss the files goodbye.


My System SpecsSystem Spec
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05 May 2014   #2
andrew129260

Windows 10 Pro
 
 

See if the device is missing a drive letter assigned to it in disk management.

http://windows.microsoft.com/en-us/w...#1TC=windows-7
My System SpecsSystem Spec
05 May 2014   #3
jumanji

Windows 7 Home Premium 32 bit
 
 

Did you check whether the pendrive appears in Windows Disk management?

If it does appear, please post a screenshot of it.( At the moment I am not convinced that it could be a drive letter assignment problem....If it were so it should get a drive letter assigned and show up on any other PC which you have said not.)

In all probability when your laptop went into hibernation, your pen drive got corrupted. But of what sort we have to decipher.
My System SpecsSystem Spec
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05 May 2014   #4
Adams Seven

Windows 7 Professional 64
 
 

Thanks for the responses. I always get a drive letter in disk management, but that's all. I wrote before that the problem came on suddenly, and it did ... but also should have mentioned that it acted up once before. It was my own fault for ignoring the warning! I think I've got a physical problem, along the lines of what's described in: https://www.youtube.com/watch?annota...&v=BwvsbUOKGLY ... and am going to chalk it up as a lesson learned. I'll put less faith in USB sticks in the future.
My System SpecsSystem Spec
05 May 2014   #5
andrew129260

Windows 10 Pro
 
 

was it a cheapo one?

As long as it is a namebrand you should not have many problems. I have had sevreal flash drives with no issues throughout the years.
My System SpecsSystem Spec
05 May 2014   #6
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Just a thought andrew.
Is it possible when the usb flash drive was installed and the computer was put into hibernate that the system also (in some way) put the flash drive into hebernate and that is where the damage occurred.

I have never used hibernation so I have no experience with it.
My System SpecsSystem Spec
05 May 2014   #7
Frozwire

Windows 7 Ultimate x64
 
 

You might want to try HDD Raw Copy Tool as this tool also supports low-level duplication of USB Flash drives for data recovery. If it still have no avail then you might have a better chance of getting your files back with a pro data recovery service at a reasonable cost.
My System SpecsSystem Spec
05 May 2014   #8
andrew129260

Windows 10 Pro
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
Just a thought andrew.
Is it possible when the usb flash drive was installed and the computer was put into hibernate that the system also (in some way) put the flash drive into hebernate and that is where the damage occurred.

I have never used hibernation so I have no experience with it.
I guess anything is possible.

But, Never heard of a flash drive going into hibernate. I think it is more likely a file was being written to the flash drive when it was being put to sleep. And then something broke.

Not sure why though.

Only suggestion left is to have disk check check it. But that is kind of hard to do when it does not show up...
My System SpecsSystem Spec
05 May 2014   #9
essenbe

Windows 7 Enterprise X64/Windows 10 Enterprise X64/Windows 10 Pro X64/Linux Mint
 
 

There is an option in advanced power management to allow Windows to turn off USB ports to save energy. I believe that is enabled by default. That may have caused the issue. But, I never trust flash drives. I always have the data somewhere else also.
My System SpecsSystem Spec
05 May 2014   #10
andrew129260

Windows 10 Pro
 
 

Agreed.

Its unfortunately sad to lose data like that.

I don't know of any other way to recover it.
My System SpecsSystem Spec
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 Can't access USB flash drive




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