How to Increase Disk Size in VirtualBox (Without Recreating the VM)
While installing Windows 11 in VirtualBox, you may get an error saying there is not enough disk space. This usually happens when the virtual disk size was set too small during VM creation.
In this video, you’ll learn how to increase disk size in an existing VirtualBox virtual machine using VirtualBox’s built-in tools, without deleting or recreating the VM.
What you’ll learn in this video:
How to increase VirtualBox disk size
Fix “not enough disk space” during Windows 11 installation
How to use VirtualBox Virtual Media Manager
Resize VirtualBox VDI safely
This method works on Windows 10 and Windows 11 and supports VirtualBox VDI disks.
👉 Make sure the VM is powered off before resizing the disk.
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