The May 2016 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 resolves issues and includes performance and reliability improvements. This update rollup is an optional addition to your regular maintenance routines. Check out the fixed issues in this update.
Issues that this update resolves
This update package fixes the problems that are documented in the following Microsoft Knowledge Base articles.
Symptoms If you installed the May 2016 update rollup 3156418 on Windows Server 2012 R2, the DFSRS.exe process may consume a high percentage CPU processing power (up to 100 percent). This may cause the DFSR service to become unresponsive to the point at which the service cannot be stopped. You must hard-boot any affected computers to restart them.
Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1