Hello, step to reproduce install windows server 2012 standard ( NOT R2 i see no problem with R2 ) install latest cygwin 64 bit from cygwin site
you can run some program like ls.exe or other from command promtp with no warning C:\cygwin64\bin\ls.exe update microsoft windows , after installing june 2021 security update kb5003697 every cygwin command that you run from command prompt you have this warning Cygwin WARNING: Couldn't compute FAST_CWD pointer. This typically occurs if you're using an older Cygwin version on a newer Windows. Please update to the latest available Cygwin version from https://cygwin.com/. If the problem persists, please see https://cygwin.com/problems.html i see no warning with other microsoft windows version and no problem with cygwin 32 bit . if i uninstall kb5003697 and reboot we have no more warning but we can't install this security fix -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple