I'm seeing this too with the 1709 build of Windows (fall creators update). I saw the issue first actually with Hyper-V, but also see it with VMware Workstation 12 Pro. I think the issue is with 1709 on the host, but my QA team also tell me they are having big performance issues with 1709 guest VM's on hosts running earlier versions. I tried everything I could think of, and eventually reverted to the 1703 build for both host and guests. Hey presto, all working great again. I'm convinced this is an MS issue in the 1709 release, not a VMware issue, but I'm not finding much discussion about it on-line yet.
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