https://www.partitionwizard.com/news/conversion-between-fixed-and-dynamic-disks-in-virtualbox.html
Conversion Between Fixed and Dynamic Disks in VirtualBox
Nov 5, 2024 - This post offers you a step-by-step guide on how to convert dynamically sized VirtualBox hard drive to a fixed size and vice versa.
dynamic disksconversionfixedvirtualbox
https://www.earth.li/mailman3/hyperkitty/list/main@lists.alug.org.uk/message/CQ24EZVJL64PLOF6L4JORGNR5FTK4R6K/
Re: [ALUG] Imaging Windows dynamic disks using Linux - main - earth.li
dynamic disksusing linuximagingwindows