Dynamic VHD harddisk size

We have deleted some data from Guest virtual machine but the size of VHD file is not reducing on Hyperv Host.

Any idea how can we reduce the size as there is low disk on Hyperv Host.
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HariomExchange ExpertsAsked:
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andyalderSaggar maker's framemakerCommented:
Can you post a screenshot of a defragmentation analysis please. Depending on the OS you may need a 3rd party defrag tool that shows the data layout graphically.
albatros99Commented:
In Hyper-V manager pick 'Edit Disk' then 'Compact'

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andyalderSaggar maker's framemakerCommented:
Won't compact after deleting files because they've just been deleted from the MFT but not zeroed out. http://social.technet.microsoft.com/wiki/contents/articles/1173.hyper-v-how-to-shrink-a-vhd-file.aspx lists some steps you may need.
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HariomExchange ExpertsAuthor Commented:
I will try to compact the harddisk first then will try andyalder comments is there any need to take the backup before doing compact ?
albatros99Commented:
You can't have any snapshots on the disk while you are compacting VHD. The compact process itself is not destructive, so you don't necessarily need to take a backup.
HariomExchange ExpertsAuthor Commented:
Compact did the trick , thanks both for your prompt support.
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