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Partioning hard disk in Windows Vista

by Shounak24 / September 5, 2009 5:40 PM PDT

Hi, i want to partition my 320gb hard disk in order to install a new OS using the disk management tool in vista. i have about 103gb of free space on my disk. But whenever i click on the 'shrink volume' tab it says that only 87mb is available for shrinking whereas i need at least 10gb for the new drive. Please tell me how to do this. Does it have anything to do with page files?

My system is a dell studio laptop with the following config.
3gb RAM
320gb hard disk with two partitions(C ,D)
OS: Windows Vista

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Are you sure ...
by Kees Bakker / September 5, 2009 5:52 PM PDT

it's 87 MB, not 87 GB?

With the page file being 2 GB or so, that can't make the difference. I'd start with a defrag and try again.


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reply to the post
by Shounak24 / September 10, 2009 5:04 AM PDT
In reply to: Are you sure ...

Hi, thank you for the post. i appreciate it very much. i tried the defrag and disk clean-up, but its still showing 87mb.

I googled the problem and found that many users encountered rhis same problem.

Lets see if a solution comes up.


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On the fly partitioning...
by Willy / September 6, 2009 11:19 PM PDT

Your HD is already partitioned and that "D" drive probably has your hidden recovery/restore data. It won't necessary report the correct space available as its "hidden" for protection and std. non-access reasons. However, I have my dithers that your laptop may not support 3 partitions as you say you want to partition more under Dell provided OS. Though, I could be wrong, but OEM OSes do vary and and this maybe one of them. I provided some links that may help you:

I just hate to "resize" any partition rather doing this directly during initial install when it lends itself far easier in doing this task. If the above resizing fails, consider that route. If you proceed be sure to backup any critical data/info.

tada -----Willy Happy

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Tried to resize the HDD through Linux
by Shounak24 / September 10, 2009 5:10 AM PDT

Hi, I tried to shrink my hard disk using linux.
It took me 5 hrs and then my windows crashed.
Again it took me 2hrs to re-install and bring my computer back to the previous state.
But ultimately the disk has been partitioned
Thanks for the support.


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