Uninstalling Cygwin properly (.\setup.exe --uninstall ?)?

[Adam Dinwoodie]

On Fri, 23 May 2025 at 14:47, Mark Liam Brown via Cygwin wrote:
> What is the official procedure to uninstall Cygwin properly? Just
> deleting C:\cygwin64 from Explorer yields lots of "malformed ACL
> warnings", and the registry still contains traces of Cygwin64

Uninstallation instructions are in the FAQ at
https://cygwin.com/faq/faq.html#faq.setup.uninstall-all

The ACL warnings can be safely ignored if you're deleting the
directory anyway. The reason for them is covered in the documentation
at https://cygwin.com/cygwin-ug-net/ntsec.html#ntsec-files

HTH!

Adam