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How to Make Windows 10 Full Screen in VirtualBox?
Install Guest Additions on Windows 10 in Virtualbox?
Step 1: In Menu, click on 'Devices'.
Step 2: Click on 'Insert Guest Additions CD Image.'
Step 3: Go to 'This PC.'
Step 4: Double Click on 'VirtualBox Guest Additions' on CD drive.
Step 5: Follow the Wizard and Reboot the System.
After that:
Go to View, and the click on 'Full screen Mode'. You will see Windows 10 in full screen with no Black spaces.
It's Done
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