where is the lost free space ?

Hi there,
I have one exchange server 2010 on one virtual machine/server and 2008 server o/S
I defraged my database and I win a lot a space but I have always a problem of space.
When I select My database and all folders on my e: is equal to 80Go on partition of 200 Go
In the propriety of the partition, I have only 30 Go free space on 200 Go.
I ask me where is the difference of  90Go ?
Please help me
Thank,      
Regards,
Simlip
simlipAsked:
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Sigurdur HaraldssonSystem AdministratorCommented:
When you defrag, you rearrange the space on the disk, you don't "win" any space. I'd suggest Treesize to see what data is taking up the space. It could be in the Recycle bin or some system folder. Run Treesize as Admin.
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R--RCommented:
REboot the server and run chkdsk /f on the drive.
Take a backup before doing it.
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VishalnarseSystem Wintel Administrator L2Commented:
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simlipAuthor Commented:
Thank all for you reply
I follow advice to use tree size.
When I check, I have 80Go of system volume information.
I have nothing in the bin.
Please help me
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Sigurdur HaraldssonSystem AdministratorCommented:
Is your virtual disk dynamically expanding or fixed size? If it is dynamically expanding, do you have enough space on your virtual host machine?
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Gary CaseRetiredCommented:
Most likely you have Shadow Copies enabled, so Windows is automatically saving previous versions of your files; and restore points for the OS at various points in time.

If that's the case, additional space will automatically be freed up as you need it.   But if you want to "start fresh", just disable System Restore and all of the current restore points and shadow  copies will be deleted => this will free up a LOT of space ... but you won't be able to restore to any previous state, so be SURE the system's running well before you do that.

... and you'll likely want to re-enable system restore afterwards, unless you maintain very good images.    Personally, I simply image the OS once/month, have automated daily backups of all our data, and do NOT enable System Restore.
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djsharmaTechnical ConsultantCommented:
Installed tree free size software and check which folder is occupying more space

Refer the below link
http://technet.microsoft.com/en-us/library/aa996139(v=exchg.65).aspx
http://support.microsoft.com/kb/186291
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noxchoGlobal Support CoordinatorCommented:
Shadow copies. They are eating your space. Clear up the shadow copies and see how much you get back.
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simlipAuthor Commented:
Hi
it seems to be temporary staging files from backup exec ..
Thank,
Regards,
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