Second HDD Not recognized, not showed in "Equipment window". Help!

Hello, thanks for let me in.

I have a brandnew pc. HP Compaq Pro 6300 MT with Windows 7 Pro 64bits, 4 days ago.
I've been using 1TB(NTFS) Seagate hdd in another pc with windows XP and in a third pc with windows 7 ultimate and works just fine, with no problem at all.

Yesterday, I installed that HDD in my new pc and my surprise when I opened the "Equipment" window was the second HDD was not listed.

When I go to "Manage/storage/Disk Management" the second HDD is listed as: "DISK 1, Dinamic, External" and has a little yellow triangle. If I go to "Properties" almost all options are disabled (please, see the caps attached bellow).

I have cheked the Bios set up and the option for sata AHCI is anabled.

Any sugestion will be really apreciated.

Many thanks

Hey, thanks for your answer.

That`s the problem. I have almost 900GB of useful data that want to keep. Hope you can help me.
Thanks in advance!

Don't give up hope.

Dynamic discs are generally to be avoided at all costs. I have no idea why you suddenly have dynamic discs.

Dynamic discs can be converted, but I cannot recall details of the method. I believe it involves third party programs, possibly Paragon? I don't think it can be easily done with Windows alone.

Pound on the search functions of this web site to see if you can find info on it. I know others have faced the issue, but I don't fully recall the solution.

You just gave me good info to start. No I know where to start searching to read. If I find something will post it here.

Regards

Rick:

I found this---a tutorial on the subject:

Convert a Dynamic Disk to a Basic Disk

Many thanks both of you. I have converted from to dynamic to basic disc and I could keep all my data-
My problem is solved!!!!