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Subject: Installing CYGWIN 3.6.5 on fresh install of Windows 11 24H2 Build
 26100 fails
Message-Id: <7AD81DD9-228F-417A-AD6E-BFAB41D0B23E@basissw.com>
Date: Fri, 17 Oct 2025 10:23:29 -0500
To: cygwin AT cygwin DOT com
From: "J. P. Abelanet via Cygwin" <cygwin AT cygwin DOT com>
Reply-To: "J. P. Abelanet" <jp AT basissw DOT com>
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Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>


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Hello,

When I perform a fresh install of CYGWIN 3.6.5 on a fresh install of =
Windows 11 24H2 Build 26100,
I get the following errors, which prevent even basic functionality from =
working:

Package: 0/Perpetual
	0p_000_autorebase.dash exit code -1073741819
	0p_update-info-dir.dash exit code -1073741819
Package: _/base-files
	base-files-mketc.sh exit code -1073741819
	base-files-profile.sh exit code -1073741819
Package: _/ca-certificates
	ca-certificates.sh exit code 139
Package: _/libsasl2_3
	libsasl2_3.sh exit code -1073741819
Package: _/rsnapshot
	rsnapshot.sh exit code 139
Package: z/Perpetual
	zp_fontconfig_dtd.dash exit code -1073741819

I=E2=80=99ve also tried upgrading an existing, working Windows 11 =
machine which had CYGWIN 3.5,
and I get the exact same problems.
I=E2=80=99ve used CYGWIN in production environments for years on various =
versions of Windows
up through Windows 10 with no problems.

Is this a known issue, and does anyone have any suggestions?=

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