Split screen sucks!

P

PavelT1

Junior Member
Any idea how to stop annoying unwanted split screen feature? I'm using Parallels Desktop 15 w/ Windows 10 in Full screen mode. When I switch to Mail application by Command-Tab, it quite often goes to Split screen mode with Windows 10 on left and Mail on right half of the screen. I hate it! I understand it is not a bug or problem of Parallels Desktop, but maybe anybody can give me the advice how to configure it or Mail or Mac OS to stop it?
 
Hi,
please open Finder, on the top Mac menu bar click on Finder -> Preferences -> and untick "Open folders in tabs instead of new windows" option.
And then check the issue.
 
Seems to fix it, thank you very much! Looks like Apple took some inspiration from Microsoft, because I used to find similar solutions on Windows. I mean to solve something, you have to click on something completely unrelated...
 
Sure. When I'm in Windows 10 (virtualised by Parallels Desktop), full screen mode, I need to switch to Mac Mail app. I'm used to switch between apps by Command+Tab. So I press Command and then Tab once or more times, to choose Mail app icon. And then i got this - see screenshot. On the left side of the screen is Parallels desktop and o the right side Mail App. I wish this is not happening - I just want to switch to Mail app on another screen (or space as Apple calls it).
 

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No, never. It happens only with conjunction with Mail app. As I wrote in the initial post, I don't blame Paralles Desktop for it. I'm just looking for advise, if anybody knows how to stop this behavior.
 
PavelT1 said:
No, never. It happens only with conjunction with Mail app. As I wrote in the initial post, I don't blame Paralles Desktop for it. I'm just looking for advise, if anybody knows how to stop this behavior.
Click to expand...
Did the reinstallation help?
 
Last edited:
I haven't done any reinstallation. Just system updates. It seems I have to get used to this and not switch between apps using Cmd+Tab
 
I was having this same exact issue--command/tab switching from Windows 10 to Apple Mail makes a split screen with Win on the left and Mail on the right. I followed PavelT1's suggestion to go to macOS/System Preferences/Mission Control and check the box--"When switching to an application, switch to a Space with open windows for the application"--it was already checked, but I unchecked and checked it again to reset the preference--and that seemed to solve it. I can now switch cleanly to Mail.
 
PeterB55 said:
I was having this same exact issue--command/tab switching from Windows 10 to Apple Mail makes a split screen with Win on the left and Mail on the right. I followed PavelT1's suggestion to go to macOS/System Preferences/Mission Control and check the box--"When switching to an application, switch to a Space with open windows for the application"--it was already checked, but I unchecked and checked it again to reset the preference--and that seemed to solve it. I can now switch cleanly to Mail.
Click to expand...
Hello, if the issue reoccurs please let us know
 
Unfortunately the fix I tried worked only temporarily. The split window comes back to haunt. This is got to be a bug with Parallels. I'm on macOS 10.14.6. Windows 10 Home, version 20H2, OS Build 19042.746, Experience Windows Feature Experience Pack 120.2212.551.0, Parallels
Version 15.1.5 (47309)
 
Sure, the feature is good, if you invoke it intentionally. But when it appears all the sudden just after Cmd+Tab..., sucks...
 
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