No problems that weren't solved by the partitioning. I did it in the Win98 days, XP days, and routinely in 7, 8.x, and 10 days. Plus, I do it constantly on Linux in VMs. No issues so far, but knock on wood... No power outages or stuff have happened during the process
It has not yet failed for me, ever
But knock on wood, or use a 4 leaf clover, or something... Just in case