Hyper-V Checkpoints taking up too much space

I have a Hyper-V Host (Windows Server 2012R2)  that has a relatively large capacity so should have a lot of extra storage space. Recently I noticed it was getting low on space and it appears to be being taken up by AVHDX files. along with that, there are multiple snapshots showing for one of the VMs. I am only hosting two VMs.
I would like to remove anything that I don't need but don't want to delete anything that might be reliant on something else.
I have attached views of what I am looking at for further understanding.
My goal is to delete any unnecessary files and recover free space from my hard drives.
Thanks so much.
Thomas AnthonySecurity AdministratorAsked:
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David Johnson, CD, MVPRetiredCommented:
merge them, don't create snapshots except for specific purposes, and if you don't need to roll back, then merge the snapshots.

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Thomas AnthonySecurity AdministratorAuthor Commented:
OK. That sounds good. It appears I am low enough on space I may not have enough room for it to create another full VM. So you know if it removes the space of the old snapshots during the export process to help free up space?
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
My EE article has a lot of information on setting up and managing Hyper-V: Some Hyper-V Hardware & Software Best Practices.

The AVHDX is a differencing disk that keeps all of the changed bits since the snapshot.

To free up space delete the smallest checkpoint/snapshot first. Note, the process creates an entirely new parent VHDX file. So, there needs to be enough free space for that to happen. If it does not, then they will need to be merged manually.
Thomas AnthonySecurity AdministratorAuthor Commented:
Excellent. Thanks so much.
Thomas AnthonySecurity AdministratorAuthor Commented:
It is great to get immediate and accurate solutions.
Thanks so much.
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