USB drives detected but not shown in Computer

Dear sevenforums users,

it s been a while since i have been having this problem with usb external drives .
As written in the title my pc does detect them but they re not shown in computer.
I have to point out i dont get any problems when i plug my phone in the pc , it recognizes the smartphone and i can browse the folders , upload and download pics , etc etc.

All the usb sticks are shown in the device manager


I tried to remove and install all the drivers , still having the same problem.

I thought i had to assign them a driver letter but when i try to do it, disk management comes up with this error :



Dunno if might be useful to you but here their details through diskpart:


You re my last hope XD .
Thank you in advance

I searched for that exact error about the disk console and found a microsoft fixit - just yesterday. It seems that Microsoft updates its driver recognition list and if somehow you haven't done so (perhaps a minor update you chose not to install), Microsoft will eventually refuse to recognize. Google the entire error message. Checking my download logs it might be fixit 50688 - but check that.

In my case I also ended up having to check the security on the console and had to reset it so that the admin owned it rather than the system. When it still wasn't happy, Everyone owned it and since then it's been working fine.

Hope this helps.

Madeline

Have you tried to create a partition, format and assign it a drive letter In diskpart?
diskpart
list disk
select disk 1
clean
create partition primary
select partition 1
format fs=ntfs quick (or format fs=fat32 quick if you want fat)
assign
exit
exit

It doesnt work , there are no volumes....


I tried to create a volume as well but it says "a disk specified is not dynamic. Please specify a dynamic disk and try again"

Hum try this Happy D it may come up with something for you.

Best Free Partition Manager Freeware and free partition magic for Windows 7, Windows 8, Windows Vista and Windows XP 32 bit & 64 bit. MiniTool Free Partition Manager Software Home Edition.

That was my next suggestion. Here is the tutorial on using it. Use the bootable one. http://www.sevenforums.com/tutorials/93322-partition-wizard-use-bootable-cd.html
Does your computer do this with all USB drives, or just this one?

essenbe said:

That was my next suggestion. Here is the tutorial on using it. Use the bootable one. http://www.sevenforums.com/tutorials/93322-partition-wizard-use-bootable-cd.html
Does your computer do this with all USB drives, or just this one?

Click to expand...

Thanks mate didn't know that was there even

essenbe said:

Does your computer do this with all USB drives, or just this one?

Click to expand...

all of them , i tried the 2 usb sticks on my laptop and they re fine.

Right, thank you guys for the support so far
I ll give minitool a whirl later , i m off to bed now it s quite late here XD .

Has anyone ever heard of the Disk Management tool? When going into Control Panel>Administrative tools>Computer Management>Storage>Disk Management you should see the factory volume(Fat 32) once the flash drive or other external device is properly detected. If you added an SD card into a cell phone or to a digital camera that will be seen as a storage medium as well.

Once you have located the volume you simply right click on that to select the change drive letter option. This will generally initialize the drive or device on the spot. If you should see the "offline" showing in the square area on the left side clicking on that to set it to online or going to the menu bar>Actions to select the rescan all disks option can also help.

Once the drive or device is assigned a drive letter you will then see that in use when opening up a new explorer window and looking down the list of drives. In most cases as soon as you use the Change drive letter option a new popup will flash indicating the item was initialized and is now available for use.

Night Hawk, yes I heard of it once. But after seeing the second screenshot in post #1 figured that wouldn't work.

All that was needed there was to use the rescan drives option or flip back and forth to Storage and then back to the DM to refresh things. The error popup notice states a refresh was required. Once that is taken care of it's right back to normal again in two seconds time.

essenbe said:

Night Hawk, yes I heard of it once. But after seeing the second screenshot in post #1 figured that wouldn't work.

Click to expand...

Yes Night Hawk I had thought of that when I first answered this members post but as essenbe says I saw they were not being picked up by that Computer feature.

Why not search the disk console error that prevents the OP from getting to the drive - as per my earlier post. It took me 5 minutes to find the microsoft fixit and 2 minutes to execute it. And maybe it would be necessary to check ownership security settings but I think that was a problem with my particular machine.

I rest my case.....

Madeline

The image #2 shows both flash drives plugged in at the same time. I have to wonder if only having one plugged in will allow it to be properly detected as well as how good the factory Fat volume is or the drives themselves.

With certain brands I have found that some are more trouble then they are worth! That's mainly due to a poor quality to start with. HP and PNY flash drives are touchy to get to work even on self powered hubs as well as plugged directly into ports at times.

I have that often enough when plugging them into older builds as well as a few laptops here and they simply are not to be counted on while other brands are plug and play and be happy! While in the DM there one idea would be to see what will work as far as dumping the factory volume on each and then creating the new GUID for a fresh partition on each flash drive. The new volume can then be formatted to Fat or NTFS which is often the preferred when strictly used on Windows only.

Hi HappyDragon,

I hope you are still watching this thread for a solution.

Now first things first.

If I haven't missed anything, have you tried those pendrives on some other PC?

Are these accessible in those PCs?