Upgrading my lab and ran into an issue doing a fresh install of vCM 5.7.3 on a two-tier Windows 2012R2 setup. On the collector server, I was having two issues using the "Typical" install...
1 - During the pre-req inspection, I would get a couple of pop-ups stating that "Sysinspectoidwmi" module had stopped working. Clicking OK cleared the pop-ups and the checks continued no problem.
2 - At the Pre-Requisite wizard, I was unable to get SQLXML installed via the "Download" option. A peer suggested installing SQLXML manually on the collector server, and when I did I got an error that I needed .NET 2.0!
Installing the .NET 3.5 framework on my Windows Server 2012R2 collector did the trick. Both issues were resolved.