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Newbie
Myth024
Posts: 4
Registered: ‎06-15-2011

Sandisk Cruzer not recognized by Windows 7

I've seen countless issues with sandisk USB drives and this is what I did to fix it. Please note, this involves moving files around and if your not careful you could make things horribly worse.

A few things to note
1. The sandisk worked fine in any other OS except for Win7
2. Sandisk wanted you to uninstall the "U3" software which you can't do if you don't have another computer the device is recognized on.
3. I had completely obliterated everything on the drive including all special partitions etc including any and all U3 files without using any kind of sandisk un-installer.  [Please note I used a low level hardware format but it's not something any one needs to do for this to work]
4.Normally it would be detected as a storage controller but then would fail to install and listed itself as an unknown device. Previous suggestions from forums and Sandisk FAQ's failed to work.


1.The first thing I did was delete the usbstor.inf file in c:\windows\inf (you may want to put a copy on your desktop just to be safe)
When I put the USB stick into a USB port it detected it again but this time it showed up as Cruzer in other devices in device manager. (Device manager can be accessed by right clicking on your "computer" icon and selecting manage.)

 

2.I then copied the file usbstore.inf from C:\Windows\System32\DriverStore\FileRepository\usbstor.inf_amd64_neutral_xxxxxxxx where xxxxx could be any combination of numbers and/or letters. The actual directory where this file is found is probably in a different location for your install of windows, depending on your specific comptuer. You could see _intel or _x86 it just depends on the type of operating system and computer you have. (The file should be in a subdirectory of C:\Windows\System32\DriverStore\FileRepository\) Another way to find the file is to do a search in C:\Windows\System32\DriverStore\FileRepository\ for the usbstore.inf file.)

 

3.When I scanned for hardware changes in Device Manager, (you should see the name of your computer at the top, just right click and select scan for hardware changes) this time it picked it up as the correct device and installed it as a USB mass storage device.

 

Although I didn't try it, I suppose it's also possible to simply remove the original usbstore.inf file from the c:\windows\inf directory and put it back later instead of copying the other one.

I hope this helps anyone who still has the issue. If this didn't work for you or you had another issue pop up. I'll try and keep an eye on this post. :smileyhappy:

Newbie
steelhead
Posts: 1
Registered: ‎07-15-2011
0

Re: Sandisk Cruzer not recognized by Windows 7

Have the same problem if Staples cant fix{where I bought it} its goin to be returned

Newbie
shadyjames
Posts: 1
Registered: ‎08-30-2011
0

Re: Sandisk Cruzer not recognized by Windows 7

ok not sure about moving files but i had this same issue, but i couldn't see my usb drive in my linux os either, so here is how i fixed it, and can now use it in win7 or Kubuntu

First I downloaded a free partitioning software called EASEUS it could see the usb stick and i told it to wipe all data and partition to a FAT32 after that windows was able to see it as an empty drive and I was able to make a Kubuntu startup disk, which is what i got it for. By the way the process too a long time to wipe and partition.

Hope that helps anyone else who might have this issue 

SanDisk Guru
Ed_P
Posts: 1,709
Registered: ‎07-23-2010
0

Re: Sandisk Cruzer not recognized by Windows 7

FWIW I boot Windows PE on my Cruzer and I didn't reformat it or delete U3 from it.  I can use it both ways.

Ed
Newbie
zodman
Posts: 1
Registered: ‎11-27-2011
0

Re: Sandisk Cruzer not recognized by Windows 7

Thanks a lot Myth024 !!!

I struggled so much and found no valid answer except yours :smileyvery-happy:

dp
Newbie
dp
Posts: 1
Registered: ‎04-06-2012
0

Re: Sandisk Cruzer not recognized by Windows 7

[ Edited ]

Thanks a ton.... It worked like a charm...this problem has been bugging me since a long time

Newbie
kon16ov
Posts: 1
Registered: ‎04-13-2012
0

Re: Sandisk Cruzer not recognized by Windows 7

Just to give this a much deserved bump, after purchasing a 32GB Cruzer and not being able to get it to recognize on a Win7Pro system at all, I found this thread and it solved the problem. 

 

In my case, there wasn't a usbstor.ini at all in the inf directory, but copying it over from the FileRepository did the trick .  Fantastic!  I had just spent 30 or so minutes with tech support and if I had found this before then, it would have been unnecessary. 

 

Very cool and thank you to the OP for sharing this excellent workaround.

Newbie
ajmcpa65
Posts: 1
Registered: ‎06-13-2012
0

Re: Sandisk Cruzer not recognized by Windows 7

I saved files on this Scandisk Cruzer 8 gb How do I get files off? Disk was to reformat itself?

Data has to be on it what do you think I should do to get files off scandisk?

SanDisk Guru
Tapeworm
Posts: 15,032
Registered: ‎04-17-2008
0

Re: Sandisk Cruzer not recognized by Windows 7


ajmcpa65 wrote:

I saved files on this Scandisk Cruzer 8 gb How do I get files off? Disk was to reformat itself?

Data has to be on it what do you think I should do to get files off scandisk?



The same way you put the files on it, only in reverse. Presumably, drag & drop or cut/copy & paste.

SanDisk Guru
Ed_P
Posts: 1,709
Registered: ‎07-23-2010
0

Re: Sandisk Cruzer not recognized by Windows 7

"Disk was to reformat itself?"

 

Sounds like the file system has been corrupted.  Usually caused by not using Windows Safely Eject function.  See if running CHKDSK from a Command Prompt helps correct the FAT.

Ed