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Windows 7: disk1 unknown not initialized

11 Mar 2014   #1

Windows 7 Ultimate x32
disk1 unknown not initialized

i have a hard disk 1 TB (i was 5 partitions)..suddenly it did not open..i treid to open it in disk management software it shows picture 1
i treid to open it with the software minitool partition wizard professional it shows its size is negative
how can i solve this problem

Attached Thumbnails
disk1 unknown not initialized-screenhunter_01-mar.-11-23.04.gif   disk1 unknown not initialized-screenhunter_03-mar.-11-23.16.gif  
My System SpecsSystem Spec
11 Mar 2014   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit

First thing I'd do is try to run the hard drive manufacturer's disk tools on the drive. It may be dead or dying. Shows as "bad disk" with no file system in PW.

And I'd hope I had a backup of whatever is on it.
My System SpecsSystem Spec

 disk1 unknown not initialized

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