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There are other performance enhancements and cool stuff that happen but just follow that link above to learn more. Guest additions will enable features like the ability for the mouse to travel seemlessly between linux and your VM, with no need to use that stupid Superkey. Then you just follow the onscreen instructions to install it within Windows. Just like you would expect on Windows after inserting a software installation CD, it will instantly ask you if you want to run it. When you click "Install Guest Additions", Virtualbox virtually "plugs in" a fake CD-ROM drive with a bootable CD volume that contains the guest additions software. To change the behavior of the function keys to their traditional functions ( F5 - page refresh, F11 - full screen, etc. Click the View menu in the virtual machine and select the Full-screen Mode (Right Ctrl (Host) key + F) option. Right-click the virtual machine, select the Start submenu and choose the Normal Start option. This, for example, also happens with the pre-installed 3D pinball game. Use the following steps to make Windows 10 full screen on VirtualBox: Open VirtualBox. I just wanted to add a little explaination about what happens when you do this. The virtual machine works perfectly but when I run the game in fullscreen it remains small in the center and is not scaled to the screen resolution ( 1080p). Please guide me through this amazing feature you have brought to my intrigued attention :) If you don't know what are guest additions.
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If your guest system is Windows, you will see the guest additions installation utility(if autorun is enable).
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