Shrink SVI Folder

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I ran into an interesting issue the other day, my C:\ on one of my Server 2008R2 machines was starting to get real full due to the System Volume Information folder found on the root of the C:. I did the following steps to resolve the issue.

NOTE: If you want to skip the shrinking and just delete all restore points, run something like:

"C:\Windows\SysWOW64\vssadmin.exe" Delete Shadows /All /Quiet

NOTE: This did not work on my W10 install, but I don’t use System Restore – I use imaged based backups with Veeam Endpoint free.

To Resolve:

  1. Run – cleanmgr.msc – Select System Restore and shadow copies – Clean up. This usually will fix the issue, but what do you do when it’s greyed out?
  1. Open an elevated command prompt and type: vssadmin resize shadowstorage /for=c: /on=c: /maxsize=1024MB

Update 2018-03:

I used the following method recently:

1. diskmgmt.msc – Select the drive – Properties – Shadow Copies

2. In the list of copies, select those over 10 days old and delete them all.

To do it via command line:

Delete shadows OLDEST <BackupStorageLocation>

NOTE: I believe you would have to do this multiple times – so create a loop. Something that collects all restore points and only keeps the latest ten. I just did it via GUI since it was a one off task on one machine.

  1. This only works if VSS/ Diskshadow is enabled. Since Windows 8, Shadow Copies is replaced by “File History”:

  2. If you really want to enable Shadow copies on Windows 10, you have to do the following:

4a. Enable it by following step 1 above. From CMD:

wmic shadowcopy call create Volume=c:\

4b. Create a scheduled task – Open Task Schedule and create task – name it ShadowCopy_C (or any other name you want) – select the triggers, once it was at 07:00 and 12:00 every day – At the action tab write WMIC – at the arguments – shadowcopy call create Volume=C:\
***Do this for each drive

NOTE: It is highly advised you use a network drive to a file server that is backed up over VSS. You could also use an attached backup HDD per the link in step 3.