In April 2013 Microsoft released an update rollup for Windows Server 2012 and Windows 8. There are some important updates in the rollup such that people should work to get the updates installed ASAP, especially if virtualizing a server OS.
http://support.microsoft.com/kb/2822241
Specifically for folks who manage AD and may get a call about this… There is a fix around an access denied issue when an object access audit policy is defined to domain members (I saw several posts on the inter-web on this in relation to VMware and drives that are configured as hot-plug).
http://support.microsoft.com/kb/2811670
joe