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Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to High Memory usage in Windows 2012 R2.
SQL Server allocates buffer pool memory using the AWE memory allocation API. If "lock pages in memory" is enabled,
SQL Server will eventually use all the RAM it requires if the maximum server memory setting is not configured. In RAMMap, that will primarily appear as AWE memory. You can get further information and an explanation of all the SQL Server memory options here.
Please consider to set the max server memory setting to allow an adequate amount for the operating system.
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