September 20, 2016 — KB3185278

This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

• Improved support for the Disk Cleanup tool to free up space by removing older Windows Updates after they are superseded by newer updates.

• Improved compatibility of certain software applications.

• Removed the Copy Protection option when ripping CDs in Windows Media Audio (WMA) format from Windows Media Player.

• Addressed issue that causes mmc.exe to consume 100% of the CPU on one processor when trying to close the Exchange 2010 Exchange Management Console (EMC), after installing KB3125574.

• Addressed issue that causes the Generic Commands (GC) to fail upon attempting to install KB2919469or KB2970228on a device that already has KB3125574installed.

For a complete list of affected files, see KB3185278.