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How to prevent System Volume Information from filling up with orphan shadows?

On many Windows systems, clients and servers, including 2016, 2019, and many builds of 10, we are seeing System Volume Information fill up, sometimes with hundreds of gigabytes of orphan shadows. On client machines they are usually cleanable using VSSADMIN DELETE SHADOWS /ALL; on servers sometimes a few of them can be cleaned like that, but in general most have to be removed by DELETE SHADOWS ALL inside DISKSHADOW. Any thoughts on prevention, apart from improving drive systems?

I am currently testing setting MaxShadowCopies to 32 instead of the reported default 64, and MinDiffAreaFileSize to 9984 (9984 being a seemingly good way to not disturb USB sticks 10G or larger). So far these settings may have helped, but confirmation will take a long time.

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