Reduce Hyper-V Machine Size

Hello All,
I have created Hyper-v machine in windows server 2012 environment. And install exchange server in that hyper-v machine. Hyper-v machine hdd configured by dynamic disk. now the size is increase and I delete the file from hyper-v machine. now I need to
reduce the hyper-v machine size. please what is the procedure to reduce hyper-v vhd file size.
please suggest. thanks

Hi Parvez,
>>now the size is increase and I delete the file from hyper-v machine. now I need to reduce the hyper-v machine size.
First , I would to say the VHD size can be expanded but can not be reduced .
I assume that you want to reduce the dynamic VHD size on disk .
As a workaround , please try the following steps :
1. defrage the disk inside the VM OS .
2. shutdown the VM then
compact the VHD file of that VM .
3. start up the VM
4. in that VM open disk management , right click the Volume and select "shrink Volume"
(after "shrink " , the unallocated space equals to the space you want to reduce )
Best Regards,
Elton Ji
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Decrease the Hyper-V machine Size

The host machine is running on Windows Server 2012 STD. and two Hyper-v machine running with dynamic HDD. one hyper-v machine HDD size increase as because of so many file copy in the hyper-v machine. and now i delete this file. But HDD hype-v machine size
not reduce. So, how can i reduce the Hyper-v machine size. on that Hyper-v machine Exchange 2010SP3 running. the physical HDD getting space low. So, need to reduce the Hyper-v machine size.
Please suggest

Hi Parvez,
Sorry for the delay.
"Virtual disks that use differencing or delta mechanisms (such as Hyper-V's differencing VHDs or snapshots) are not supported."
Please refer to following article of exchange2010 :
http://technet.microsoft.com/en-us/library/cc794548(v=exchg.80).aspx
I would suggest you try to shutdown the VM and backup it , then you may try to copy the vhd and AVHD to large enough disk space to merge snapshot for test .
Best Regards
Elton Ji
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Reduce Hyper-V Machine Size

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