A little over a week I ago I reported that Microsoft was working on a fix to eliminate an issue with Configuration Manager 2012 R2 where download times for OS images would peg the CPU at 100%. The hotfix is now released and available from here:

An update is available for the "Operating System Deployment" feature of System Center 2012 R2 Configuration Manager

In a little less than a week Microsoft CSS was able to identify the issue, determine what needed to be fixed, and produced a workable patch to solve the issue. You have to admit, that's a pretty quick turnaround.

The issue, according to the KB Article (2905002), results from a couple events:

  • The PXE Service Point role has to be enabled, or…
  • Deploy this boot image from the PXE-enabled distribution point is selected.

Also of note, the problem is only exhibited on Distribution Points that are installed on site servers.

P.S. Our sister site, myITforum.com, has community-built lists of known System Center 2012 R2 issues so you can keep track of known issues, and add any issues you've uncovered on your own.  You can read through the lists and participate here:

System Center 2012 R2 Known Issues