USB flash drive cannot be assigned drive letter or formatted

Thomas Zucker-Scharff
Thomas Zucker-Scharff used Ask the Experts™
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I get the same error on several different windows machines.  When I stick the same, not other, SB stick in and attempt to assign a drive letter.  I also get this error if I try to format the thumbdrive.

The drive can be formatted by Paragon software and even assigned a drive letter.  Even after applying the changes disk management cannot assign a drive letter (gets same error), or format the drive again.  The drive appears in the device manager.  The drive also appears on my linux (kali) box.

Windows 10 Pro - latest build
USB 2 4gb diskGO by EDGE

Disk manager running as Administrator encounters error
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Others like it acting the same way or the only one of its kind?

Being that it is only 4 GB, if there is no reason to keep it, I would write it off as bad or defective and buy another.

Author

Commented:
So far no others are acting like it.  It is small, but it was working before I formatted it.  SFC /scannow didn't find any errors either.
NOTE: THIS CAN BE DESTRUCTIVE IF YOU ACCIDENTALLY DELETE THE WRONG DEVICE(S). Not responsible for accidents, tax, title and tags extra. Batteries not included ...

However, it might be something conflicting in a hidden device. I would enable hidden devices (see http://www.thewindowsclub.com/show-non-present-devices-windows ), check device manager to see if there are any old affiliated devices showing up which could be conflicting with this device, delete them, reboot and try the device again.

Again, if no luck, I would purchase another.

I actually had this fix a RAID / bootup issue on a server ... was sweating bullets when I tried it ... but it worked!
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Top Expert 2015
Commented:
I have used Phison Format & Restore to do a low level reformat to the USB flash drives.  This should fix the problem.

Beware: a search in Google returned a few links of this tool but they are suspicious.  Always scan for virus before running any downloaded software.

Failing this, you can try using others such as https://www.techspot.com/downloads/5265-low-level-format-tool.html but I have never used this one so I can't comment on it.
My approach is "Method 5" is this lengthy list of things to try in Windows 10; https://appuals.com/fix-usb-device-not-recognized-on-windows-10/

Didn't realize there were so many things to try!
Top Expert 2013

Commented:
check what happens on another PC with this stick -  can you format it?

Author

Commented:
@nobus

other pc gives same error
Top Expert 2013

Commented:
then the problem is with the stick
does it have any software on it?  encryption or so ?
more info here :  http://us.edgememory.com/index.php/usb-flash-drives/item/30-diskgo-secure-pro-usb-flash-drive

Author

Commented:
I did a low level format on it using Hard Disk Low Level Format Tool and it is good to go.

Thanks All.
Top Expert 2015

Commented:
I am glad I was able to help and thanks for getting back.  Cheers!

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