Your VHD file might need to be converted for use in different hypervisors:

Time became a strange, viscous thing. The library basement grew dark. The only light was the blue glow of his screen and the tiny green progress bar.

Q: Is Windows Server 2008 R2 SP1 still supported by Microsoft? A: No, mainstream support for Windows Server 2008 R2 SP1 ended on January 13, 2015, and extended support ended on January 14, 2020.