However, if you can’t open Calendar on Mac OS 10.15 in safe mode, then try out the next troubleshooting tool. But if the issue is gone for good, then the decluttering action of Safe Mode must have erased the culprit cache or directory files responsible for the problem from your hard disk.ģ. Now if the Mac OS 10.15 calendar app won’t launch in the normal mode, then you need to check for incompatible login items. You can try running your Calendar in normal mode by restarting your device without pressing down the “Shift” key. If your Calendar app gets back to running normally, then the Safe Mode troubleshooting effort paid off. Release the key once the Apple logo appears.Ģ. Go to “Apple menu > Restart”, and then press down the “Shift” key as your device restarts. The first thing to do is to try out one of the simplest troubleshooting tools for Mac, the Safe Mode.ġ.
How to Fix macOS 10.15 Calendar that’s Not Starting Method 1: Troubleshooting with Safe Mode
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