Upgrade to Windows 2012 R2? Share on Facebook Post on reddit Tweet on Twitter Share on LinkedIn Home › Forums › Server Operating Systems › Windows Server 2012 / 2012 R2 › Upgrade to Windows 2012 R2? This topic has 5 replies, 4 voices, and was last updated 6 years, 7 months ago by praveenkumarojha1. Viewing 1 post (of 1 total) Author Posts NehemothMember Nov 01, 2013 at 8:21 am #162618 Someone knows If I can upgrade from 2012 to 2012 R2, I mean no technically but if with my Windows 2012 I’m legible to install R2 or to upgrade a machine to R2. For once the MAK licence for 2012 doesn’t work with 2012 R2. Thank you Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.