It is not seen in MyComputer because the space is unallocated...unformatted.
Once you format the drive Vista will see it under Device Manager.
here is a little info on the various options
http://www.vista4beginners.com/How-t...anagement-tool
peter
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"MNewsome" <MNewsome@discussions.microsoft.com> wrote in message
news:A86F9961-24FC-4982-80F3-43F7F1832504@microsoft.com...
> Just placed a SATA drive into a Vista Ultimate desktop. I have a total of
> three (3) SATA drives yet to be introduced to the system ranging from 120
> to
> 500GB in addition to the 400GB EIDE primary drive. The drive is seen in:
> BIOS, Device Manager, Computer Management-Disk Management... [All Space
> unallocated], but not seen in 'My Computer'. In past times, I would see
> the
> next available alphabet letter automatically appear. The local help
> option
> leads me to a technet page that discusses the creation of volumes, Master
> Boot Record, GUID Partition tables. The link goes to a Technet site that
> mentions disk management options for a number of Operating Systems but
> not
> Vista. My intention is to use this drive for storage and possibly
> applications. I would like to cultivate my knowledge of disk management
> options for Vista. Guidance sought