Steam is compatible with multiple platforms including Windows, macOS, Linux, iOS, and Android.
Although it is popular, it doesnt always work well.
Sometimes, Steam is not opening properly.
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How to stop Steam from opening on startup in Windows or Mac?
In this post, we will show you some methods to disable Steam on startup.
For Windows, you could go to find solutions from our previous post Steam Wont Open?

Here Are 11 Solutions to Fix It Easily.
If you are running macOS Monterey, Big Sur, etc., this post is written for you.
When launching Steam on your Mac like M1, an error will appear saying Steam quit unexpectedly.
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This is an annoying issue since you cannot play a game via this service.
The common reasons for this error are damaged files, software issues, inadequate permissions, etc.
Fortunately, it’s possible for you to find some effective methods in the following part.

Lets see how to fix Steam quit unexpectedly on Mac.
Steam ends support for Windows 7.
8 and 8.1, giving you another reason to upgrade to Windows 10/11 - to avoid malicious attacks.

How to Fix Mac Steam Quit Unexpectedly
cycle your Mac
This is a simple way.
Just tap on theAppleicon and chooseRestart.
To do this:
Step 1: Go toFinder > Applications > Steam.

Step 2: Right-click onSteamand move it to Trash.
Step 3: ClickGoin the top menu and chooseGo to Folder.
Step 4: Paste~/Library/app Supportto the search box and pressEnter.
Step 5: Right-choose the Steam folder and delete it.
Step 6: Go to~/Library/Preferencesand also delete the Steam folder.
Besides, delete all the .plist files with Steam in their name from this location.
Then, use thesteam.dmgfile to install this client again.
To fix this issue, you gotta grant it some permissions.
Step 1: In the Apple menu, clickSystem Preferences.
Step 2: ClickPrivacy and Security > Privacy > Accessibility.
Step 3: ChooseClick the lock to make changesand check the box ofSteam.
Go to change the date and time:
Step 1: Go toApple > System Preferences.
Step 2: ClickDate & Timeto configure the options to reflect your current locations time zone.
If a new available update is checked, clickRestart NoworUpgrade Nowto implement the new version.
you’ve got the option to give a shot to turn off the program.
Step 1: Go to theMacmenu and you could see the antivirus icon.
Step 2: Right-opt for icon and chooseDisable,Stop, or any other similar option.
Step 3: If asked, clickYesorConfirm.
These are the common solutions to help you remove the error Steam quit unexpectedly Mac.
Hope it’s possible for you to easily fix your issue.