On Fri, Oct 17, 2025 at 3:54 PM J. P. Abelanet via Cygwin <[email protected]> wrote: > > Thanks for the quick reply. This is a vanilla install, with literally > nothing on it other that Windows 11. > In particular, no third-party anti-virus tools have been installed. > I had already tried adding a WD exclusion for C:\cygwin, and turning off > Real-time protection and related > switches. > > Any other ideas? This is a Parallels VM, but I’ve used CYGWIN on all my > other Parallels VMs for > 15 years in a very high usage development environment with no problems.
100%, this is your environment. I am running an Azure VM: OS Name: Microsoft Windows 11 Enterprise OS Version: 10.0.26100 N/A Build 26100 uname -a CYGWIN_NT-10.0-26100 kscygtest 3.6.5-1.x86_64 2025-10-09 17:21 UTC x86_64 Cygwin Defaults on everything, running as admin for the install. No install problems -- running flawlessly. Kevin -- 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

