Sorry, for the noise. I had not seen the previous messages where this was already reported. The bit that I can add to this discussion now is that updating to Cygwin (the 'cygwin package') 3.6.3-1 just now did resolve the issue for me and playing with the individual app exploit security settings doesn't help...
Regards, Stefan ________________________________ From: Cygwin <cygwin-bounces~stefanb=us.ibm....@cygwin.com> on behalf of Stefan Berger via Cygwin <cygwin@cygwin.com> Sent: Monday, June 9, 2025 11:10 AM To: cygwin@cygwin.com <cygwin@cygwin.com> Subject: [EXTERNAL] No shell can be opened: Error: Could not fork child process: There arre no available terminals Hello! It looks like a recent update of cygwin is now not letting me open any shell anymore. I get the following error with the Window frame showing 'nologin' in upper left corner: Error: Could not fork child process: There are no available terminals (-1). I have tried to apply security exceptions for nologin and mintty via Windows settings. The Windows settings I have used can be found under 'Privacy & security' -> 'Windows Security' -> 'App & browser control' -> 'Exploit protection settings' -> 'Program Settings'. I added 'C:\cygwin64\sbin\nologin.exec' with its full path and added 6 overrides so that everything is now 'off'. I did the same for bash and mintty but it does not resolve the problem. Any help would be greatly appreciated. Thanks, Stefan -- 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 -- 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