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Windows 7: Exteranl HDD - Unknown, Not Initialized and no disc size in Disk Manag

11 May 2014   #1

Windows 7 Professional x64
Exteranl HDD - Unknown, Not Initialized and no disc size in Disk Manag

Hi all, Let me start off by saying i have spent the last few hours looking online for anything that would be able to help sort out my problem and found your forum the most helpful and the only one i have signed up to. So thankyou in advance.

I have a WD1200D036 (2.5 120GB external) that is not showing in My Computer nor was it showing up in DM but after going to device management\Disk Drives then Volumes tab and clicking on Populate it turned up in Disk Management as: Disk 1 Unkown not initialized. when i click on it and select initialize disk it opens up and asks me to select disk 1 and what partition style (I just sent with MBR) then click ok. It pops up with a error "Incorrect Function"

Any ideas??

My System SpecsSystem Spec
11 May 2014   #2
Anshad Edavana

Windows 7 Ultimate x64


I would suggest verifying the health condition of your hard drive first. You can use "WD Data Life Guard Diagnostic" to do that.

Download : WD Support / Downloads / Legacy Internal / WD RE2

The WD tool will list both your internal HDD and USB HDD for testing. Select the USB one and choose "Extended Test" to run. Let us know the test result in next reply.
My System SpecsSystem Spec
11 May 2014   #3

Windows 7 Professional x64

Hi Anshad,
I just had a look at that program and sad to say it failed and said it had a bad sector and the program couldn't repair it Owell better start hunting for a new drive. Lucky it had nothing inportant on it.

Thanks for your help
My System SpecsSystem Spec


 Exteranl HDD - Unknown, Not Initialized and no disc size in Disk Manag

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