Yeah, you have lag accessing time, so I would have expected slowness. One part of the puzzle is to not try to access the drive when you do diskpart. So, letting Windows "update|search" in the Computer window (the green status bar) isn't helping. I should have said "Only run the Command Prompt Diskpart. Shut down any other windows".

It helps if you are more specific - what diskpart commands did you try, what worked, what "hung", how long did you wait before deciding it was hung.... those sort of things. With the lag time you're experiencing, it might just take Windows a while. Or are you getting a timeout where diskpart just returns to the prompt.

So it takes 10 seconds for disc 1 to appear in diskpart - that's good information. The USB cable is another good idea - if you have a USB printer see if you can borrow that cable to test the drive. It's good to know about the warranty too.

What I'm looking for from you (you're my eyes over there) is something like this:
I ran this set of commands:
diskpart

list disk
select disk # (make sure it's the correct disk)
list disk (selected disk identified with *)

list part
select part # (make sure it's the correct partition)
list part (selected partition identified with *)


inactive

and waited 5 minutes - diskpart seemed to be hung, so I (what did you do?)



or

I ran this set of commands:

diskpart
automount scrub
remove all
exit


and it took 30 minutes but they all ran
Without important information coming back from your side, this will take years. You don't have to be too technical, but if I am going to be of any help, I need to know what you tried, what failed and how, what succeeded. In this situation a little patience with the drive will help helpful - it might take 30 minutes for Windows to say "I got it, now what do you want to do with it" or Windows might say "I tried, can't get anything from the drive, here's your prompt back".

I know it's frustrating on your side too. Let's take a break from diskpart and thinking about it in a drive-centric way.

I posted this on another USB drive problem, but they haven't tried it yet. If the drive is ok and the driver is FUBAR you might have some luck.
Try following USB Driver - General Fix for Problems.

There are some references in the comment section that help if you run into issues following the instructions.


Particularly INFCACHE.1
  • search might not find it - make sure you have "Include system directories" set in your search options or just navigate to the directory cited.
  • delete might not allow you to delete it. Pooch skipped a step when (s)he defined changing the security. You also need to give full access to Administrators. or you can follow a comment ot the take ownership tut.
  • there is an interesting comment on a known MS bug - post #5 in the tut. The direct MS reference is Binary files in some USB drivers are not updated after you install Windows 7 SP1 or Windows Server 2008 R2 SP1 - download the version specific to your machine from the resolution section.

SYMPTOMS
After you install Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 Service Pack 1 (SP1), binary files in some USB drivers are not updated. For example, the Usbport.sys, Usbehci.sys, and Winusb.sys binary files are not updated.
There is also a reference to similar issues on MyDigitalLife, but other than some executable I don't know about (I'm always wary of .exe files when a bunch of instructions work), the information seems to be duplicated there (or here).
I'll stick with it until I run out of ideas or you decide that you'll exercise the warranty.

Bill
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