Our problem is the same as in the link below.
All of our Windows Server 2012 machines are using at least 100% more memory than the 2008 servers. They are all web servers configured the same way. For example, the average memory usage is about 30% for the 2008 servers, and about 60% - 85% for the 2012 servers. All are fresh installs.
When looking at task manager and resource monitor, if you add up all the memory for all the processes running, they do not add up to the "In Use" amount -- not even close.
Unfortunately the thread above stops July 2013 without a solution.
Is anyone familiar with this problem, and knows of a solution?