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Question: window window on startup

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When I restart my Mac I often find this window (titles Window) opens up - what is it? is it a problem? and how do I get rid of it in the future?

MacBook Air, macOS Sierra (10.12.6)

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Dec 9, 2017 10:34 AM in response to Shanik In response to Shanik

Go step by step and test.

1. Try startup in Safe Mode.

Start up in Safe Mode. https://support.apple.com/en-us/HT201262

Once in Safe Mode, click the “Restart” button at the bottom.

2. Reset NVRAM/PRAM. http://support.apple.com/kb/PH18761

3. Remove login items and test. https://support.apple.com/kb/PH25590?locale=en_US

4. Backup and reinstall macOS from macOS Recovery.

Use the appropriate key combination


Dec 9, 2017 10:34 AM

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Question: window window on startup