Newsroom Update

New features come to Apple services this fall. Learn more >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Quicktime won't open in Catalina

I have QuickTime 10.5 running on a Mac Mini with Catalina. When I try to open it it immediately crashes, triggering a crash report. The crash report mentions EXC_BAD_ACCESS (SIGSEGV) and a million other things, none of which I understand. Everything else seems to be working normally. The Activity Monitor doesn't register any opening of QuickTime before it crashes.

Mac mini, macOS 10.15

Posted on Feb 17, 2020 5:04 AM

Reply
Question marked as Best reply

Posted on Feb 17, 2020 1:55 PM

A reinstall of macOS will probably fix this, but it's a bit overkill I think.


You might find deleting ~/Library/Preferences/QuickTime Preferences will help so try that first.


(That's QuickTime Preferences inside Preferences inside Library inside your Home directory.)

4 replies

Quicktime won't open in Catalina

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.