Thread: Windows 11 - Calibre hangs on first launch, but works fine on second attempt
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Old 09-28-2025, 07:13 PM   #2
JSWolf
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Quote:
Originally Posted by WinterPhoenix View Post
I’ve run into an issue with Calibre on Windows 11. The first time I launch it after starting my computer, the startup window appears, but then stops responding. Windows prompts me to close the program. However, when I try opening Calibre again immediately afterward, it starts up normally within a couple of seconds.

Is this a known issue? And is there a way to prevent the initial hang on first launch?
What version of calibre are you using? 8.11.1 is the current version. I run Windows 11 on my laptop and mini-PC and one is Windows 11 Home and the other in Windows 11 Pro and I've never seen such a problem. I'm running 24h2 on both computers.

Try calibre in safe mode. If it starts first time, it's something you are running causing the problem.
Last edited by JSWolf; 10-02-2025 at 07:49 AM.
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