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Windows 7: Question about volume shadow copy

14 Sep 2010   #1
club

Windows Ulimate 7 msdn
 
 
Question about volume shadow copy

If I go into the properties of any folder or file, and then to the Restore Previous Versions tab, I have several snapshots to choose from. I thought this was a feature of the Volume Shadow Copy service
( Shadow Copy - Wikipedia, the free encyclopedia )

however, when I look at my list of services, via services.msc, the "volume shadow copy" service is set to Manual start, and is currently Stopped. If it's not running, how is it I have these "previous versions" snapshots? I assumed if the service isn't running, there would be no snapshots being captured.

I'm not complaining, only curious to learn. Can someone clarify please? TIA


My System SpecsSystem Spec
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14 Sep 2010   #2
richc46

Microsoft Community Contributor Award Recipient

Windows 10, Home Clean Install
 
 

Shadow copy is not running all the time. It is controlled by the task scheduler. A picture is taken about once a week. You can go back to any picture. If it is not time for the picture it is off. The task scheduler turns it on

(same in Windows 7)
System Restore - disk space - Vista Forums

and

System Protection - Change Disk Space Usage
My System SpecsSystem Spec
14 Sep 2010   #3
logicearth

Windows 10 Pro (x64)
 
 

Quote   Quote: Originally Posted by club View Post
however, when I look at my list of services, via services.msc, the "volume shadow copy" service is set to Manual start, and is currently Stopped. If it's not running, how is it I have these "previous versions" snapshots? I assumed if the service isn't running, there would be no snapshots being captured.

I'm not complaining, only curious to learn. Can someone clarify please? TIA
It runs when it needs to. Thats the secret.
My System SpecsSystem Spec
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15 Sep 2010   #4
karlsnooks

MS Windows 7 Ultimate SP1 64-bit
 
 

Just for background info, here's some info behind some of the Win 7 disk usage decisions, including system restores.
Disk Space - Engineering Windows 7 - Site Home - MSDN Blogs
My System SpecsSystem Spec
18 Sep 2010   #5
club

Windows Ulimate 7 msdn
 
 

But I thought if a service is set to "Manual" start it will never run on it's own, ever.

For example, here's a screenshot of the VSS service from both 7 and XP machines of mine:
http://www.neoteric.us/images/vss.jpg

They are identical. So why on XP, when I go into the "Previous Versions" tab of any folder or file's properties there are never any snapshots taken, ever? But it does happen on 7. What's the difference... or why does it run on 7 but didnt on XP?
My System SpecsSystem Spec
18 Sep 2010   #6
logicearth

Windows 10 Pro (x64)
 
 

Errr well Windows XP doesn't have Previous Versions...only System Restore.
My System SpecsSystem Spec
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 Question about volume shadow copy




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