virtualbox.org

Hi,
I need some help.
I've setup a dynamically allocated storage (VDI) with a virtual size of 25GB for Windows 8 and although I running out of space it does not expand automatically. What can I do?

KIMW wrote:dynamically allocated storage

As you have figured by now, "dynamically allocated" concerns the allocation of the VDI on the host, not what is presented to the guest. The guest always sees a fixed (25GB) hard disk. The "expanding hard drive as needed" has not been invented (yet).

Take a look at one of the FAQs (you might have missed it during your search): How to resize a Virtual Drive.