maybe MS is the best one to ask.
http://windows.microsoft.com/en-US/windows7/Delete-a-hard-disk-partition
I have a 6 month old HP Pavilion dv6.
When I was partitioning the hard drive, some error occurred and the process got interrupted( this was after the 'shrink the primary partition'0 step). Disk Management Window didn't show any new partition, so I went on and created two new partitions, but afterwards, I can see an extra partition in My Computer. No info like disk capcity etc., visible; It just has the name 'Local Disk (Q)'. I tried running Disk Management again to get rid of it, but it's not shown in the Disk Management listing. How do I delete it? I tried system restore, but no system restore points prior to the partitioning available

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