This is on Windows 8.1.1 x64 Professional with all software at the latest version levels. Often but not always, WW.exe will hang with a CPU usage of 12.5% when my systems are awakened from Sleep/Standby mode. I do not user hibernate or hyper sleep ... just plain old Sleep/Standby. I have a ww.exe dump available for analysis. It is about 89 megabytes in size zipped. I dumped it prior to killing ww.exe via the Task Manager. If you want me to upload it, please provide instructions.