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Windows 7: Windows 7 will not recognize USB HDD devices

27 Sep 2009   #1

Windows 7
Windows 7 will not recognize USB HDD devices

Thank you everybody for sharing your advice. I see many people have had similar issues and had it resolved. Sorry if this sounds like a repeat, but having read through many responses, I have not found what will fix my problem.

Last week, I installed Windows 7, build 7600, 64-bit. It's great, except the issues with driver compability, etc.; and now this. I have two different Hard Drives, both connected via USB, that the system does not recognize at all.

Both have their own power source and previously worked in Windows Vista 64-bit, and both are barely one year old with no prior issues. The Black Widow (below) also is less than one year old.

#1 is a Quantum Fireball lct in an Acomdata enclosure;
#2 is a Maxtor SATA connected through a Thermaltake Black Widow docking station. I do not have another SATA drive to test in it but am positive it is in perfect condition.

Both hard drives mentioned are for backups and I really need to
access a b/u set.

I have reviewed the information in the disk management msc, the disks do not appear at all.

any ideas?

My System SpecsSystem Spec
28 Sep 2009   #2

windows 7 ultimate

my maxtor external driver wont appear also..
My System SpecsSystem Spec
28 Sep 2009   #3


In Device Manager, do any of your devices appear at fault?

Could be a chipset or other driver in need of update.
My System SpecsSystem Spec

29 Sep 2009   #4

Windows 7

No device errors. What drivers? These are USB connected hard drives.

I did go back and change the setting to allow for automatic play of devices - that didn't help either.

I plug in these devices and they are not seen at all. There is no damage to either unit, their power supplies, or cords. They worked last when I was running Vista 64-bit, and they ran just fine.
My System SpecsSystem Spec
29 Sep 2009   #5


Provide system specs. Also, connect a known working device to the same ports - not a drive - and confirm that the port is working.


Attached Images
Windows 7 will not recognize USB HDD devices-0-usercp1.png Windows 7 will not recognize USB HDD devices-0-usercp2.png 
My System SpecsSystem Spec

 Windows 7 will not recognize USB HDD devices

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