I'm using Cygwin on my Win 10 laptop. But some commands are incredible slow if McAffe Endpoint security v 10.5 is active. E.g. starting a cygwin window (mintty -) will take about 15-18 secs. executing bash -l will take about 12 secs. each execution of man command will take about 10 - 12 secs When disabled all of the above take about 1 sec or less. In addition during execution of above commands McAfee processes (mcshield.exe and mfeatp.exe) will consume almost 100% CPU). This also has significant impact on up-time of my laptop when on battery.