First, open System Preferences.

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Click on Security & Privacy.

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Click on the far-right tab called "Privacy."

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On the left sidebar, scroll down until you see the option that says "Accessibility." Click that.

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Youre going to have to click on the lock to make changes. Enter in your computer password.

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Once youve entered your password, the list of apps on the right-hand panel will illuminate. Click on the app that isnt working for you — in my case, Im trying to fix Adobe Photoshop CS5.

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Clicking on the app allows it to control your computer again.

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Now, click the lock again to save your changes. The apps in the right-side panel should dim again. Thats it! Cross your fingers and try opening your app again.

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This trick worked for me with Adobe Photoshop CS5 running on my 15-inch MacBook Pro, but your results may vary depending on the app that isnt working. Good luck!

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See Also:

• Apple's new iPhone software is better than ever: Here are the 12 most useful features in iOS 12
• 'More than 10' new games are debuting at The Game Awards this week, but it looks like a few have already leaked
• Android phones everywhere are adopting the iPhone's 'notch' design — and it's causing them to miss a golden opportunity

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