In the majority of cases, working in a guest OS with low resolution is not comfortable. Moreover, the size of that window is usually not big, and if you maximize the window’s size, the resolution of the guest OS user interface is left the same. That’s all of how to fix macOS Catalina screen resolution on VirtualBox.By Michael Bose How to Make VirtualBox Full Screen: A Comprehensive GuideĪfter installing a guest operating system (OS) on VirtualBox, the interface of the guest OS is displayed in a windowed mode by default.

This is the perfect way to enjoy the ideal Mac. If it’s smaller or doesn’t cover your screen, you may change the resolution with the steps we did and change the screen resolution this time. The resolution will completely fit and there’s no problem at all. About This Macįrom the menu, click on Display tab and the screen resolution will be in front of you. To check, from the top click on the Apple icon and select About This Mac. You’ll see the gorgeous Catalina wallpaper across all across the edge of your screen. It will perfectly cover your entire screen without a side black cover. To experience the seamless resolution, from the top menu, click on View and click on Full-screen Mode. Simply sign in and you’ll enjoy the perfect resolution. Without you switch to the entire resolution, it will automatically start in your preferred resolution. To try and see everything, switch on the macOS Catalina machine from VirtualBox.

This should work properly without any issue if you’ve done all the steps correctly. Apply CommandsĪnd there you go! With this simple trick, you’ve fixed the macOS Catalina screen resolution permanently. This will change the default resolution to your desired resolution. Now copy and paste the next line of the command and hit Enter. On this window, in order to locate the VirtualBox, copy and paste the first line of the command.

When you’re done, open Command Prompt without administrator privileges. The only step to fix Catalina screen resolution is now to apply the commands which are very important. Close VirtualBox Step Four: Apply Fix macOS Catalina Screen Resolution Otherwise, this would probably make the virutal machine unusable. These two are really important to be closed, so make sure they aren’t open. While the virtual machine is closed, now you need to exit from VirtualBox. Edit macOS Catalina Screen Resolution Step Three: Close VirtualBox

Virtualbox full screen issue