The KB3161608 update rollup should NOT be applied to some Win7 SP1 systems using certain Intel Bluetooth devices as KB3161608 (as well as KB3172605) clobbers them and causes them not to function correctly. Details in this Intel forum thread:Whatacrock wrote:One note though, if you install the rollup package (KB3161608) for June 2016, this will fix the issues with Windows Update (successfully repaired the issue on 2 machines)
https://communities.intel.com/thread/104414
But for those Win7 systems NOT using Intel Bluetooth devices & software, go ahead with installing either KB3161608 or KB3172605.