Windows 2008 Extend Volume option greyed out for C drive. Any ideas.

Posted on 2010-09-08
Last Modified: 2012-05-10

Windows 2008 Extend Volume option greyed out for C drive. Any ideas.

Anyone have any ideas please.

Question by:bsharath
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LVL 24

Expert Comment

by:Mike Thomas
ID: 33625647
The space that you are trying to expand into has to be contiguouse and has to be marked as "unallocated" space.

LVL 11

Author Comment

ID: 33625660
I have 500 Gb HDD
C 40 GB free space 1 GB
D 460 Gb free space 360 GB
I shrinked D drive and get 50 GB out and now it shows Unallocated only
LVL 24

Expert Comment

by:Mike Thomas
ID: 33625704
Is that 50 gig free shown as being between C & D or after D?
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LVL 11

Author Comment

ID: 33625724
After D drive
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Accepted Solution

Mike Thomas earned 500 total points
ID: 33625755
Then that is the problem windows cannot extend all vloumes as such and can only natively extend into contiguouse space so if that 50gig was between C and D it would work.

However there is a work arround, Shrink D even more and create a new volume E which is large enough to hold all the data currently on D:\ once you have done that move the data from D to E. Once this is done you can delete D and extend C into that space.

Make sense?
LVL 70

Expert Comment

ID: 33625867
Is the disk a dynamic or basic disk - you can extend dynamic disks into non-contiguous space

Expert Comment

ID: 33683896
I have this same problem.  

MojoTech's solution may be my only choice, but that means that I need to reserve expansion space for C right from the beginning, which takes away my flexibility.  I might as well allocate the space right up front.

KCTS's solution sounds good to me - except that it doesn't seem to work because I have dynamic disks and only D can be extended.

FYI, I fiddled with a virtual server with drives C and D on separate virtual disks.  When I added space to both disks, C could be extended only from its own disk space, but D could be extended from the space on C disk OR the space on D disk.  Curious about whether the anomaly is a Windows issue or a VMware issue.

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