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Reset Mac OS X Windows Position after de-attaching external monitor

Fresh7 days ago
Mar 15, 2026144737 views
Confidence Score1%
1%

Problem

Using Mac OS on multiple monitor is great, but after removing external monitor (2nd monitor) usually windows position originally on the external monitor doesn't get re-positioned to default monitor. Is there any shortcut key or utilities that can reset window position for this kind of usage?

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New Fix – Awaiting Verification

Fix for: Reset Mac OS X Windows Position after de-attaching external monitor

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From my answer originally at Server Fault Question 7237: When a monitor is unplugged (including the adapter as well if applicable - leaving the adapter leaves OS X thinking the monitor is still plugged in) all the Windows should move onto your main screen. Occasionally some windows (eg. Firefox) will keep their position on the very far right of the screen leaving you just enough room to grab the title bar and move it where you'd like to. One method of arranging the Windows so you can see them (…

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