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635 posts

Ultimate Geek
Inactive user

# 96162 21-Jan-2012 08:03
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Hi Peeps,

I would be mighty grateful to anyone who can solve this problem. In brief I appear to have a fault (not sure if hardware or software at this point) which prevents me from using the most handy device of all - the usb thumb drive.

When I put a thumb drive into a port on my windows 7 machine it:

(a) takes about 1 minute before the computer gives any indication that its been plugged in and then;
(b) a dialog box appears saying "You need to format the disk in drive j: before you can use it"

Now there is nothing wrong with the usb drives. I have tried more than one, and they all work fine in other computers.

But I cant see what in windows I can do to fix this? and its driving me nuts.





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477 posts

Ultimate Geek

  # 572213 23-Jan-2012 08:03
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I have the same problem with an 8gb sandisk. The computer bloops when it's plugged in but does not show up. Also not in admin tools. Works fine on all other pcs (both Mac and windows 7)

Also got a 16gb at the same time that I had to return as it only has 16mb on it and could not format

BDFL - Memuneh
64698 posts

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  # 572223 23-Jan-2012 08:49
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merve0o0: Also got a 16gb at the same time that I had to return as it only has 16mb on it and could not format

This was not a problem with your PC, but a fake memory being used.



10913 posts

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  # 572351 23-Jan-2012 13:11
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how does it look in the windows disk manager?

Cloud Guru
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  # 572387 23-Jan-2012 14:56
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do you have problems with any other USB devices (mouse, keyboard, headphones etc)?
did it ever work?

you could try uninstalling all the "USB Mass storage Device" in device manager:

Open an *admin* cmd prompt (i.e. right click command and run as administrator) and type the following:
set devmgr_show_nonpresent_devices=1
start "devmgmt.msc"

when device manager opens, select View menu and "show hidden devices"

expand "universal serial bus controllers" and select each "usb mass storage device" and hit delete (or right-click uninstall). Note that 'non present' ones will be greyed a little, but uninstallable

if you dont see any listed, then you probably didnt do this in an elevated cmd prompt.

once you've deleted them all, try reinserting the usb stick and let the system reinstall the drivers.

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