Disk2VHD has been a very useful tool for most IT Pro when it comes to conversions to VHD format. It has been a very good tool during P2V conversions as well. Since SCVMM 2012 R2 no longer supports P2V function this tool going to be in virtualization engineers belt for long time 🙂
Saying that this is version 2 which supports VHDX format. Tool also released by sysinternals which is part of the Microsoft company but you’ll not get additional support apart from community support. But again no complains since we use that during version 1 without MS support also 🙂
You can download the tool from here.