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How do I migrate my Windows desktop to a VirtualBox VM?

I have VirtualBox 4.3.6 and True Image 2014 Premium with Universal Restore. I've read a lot about different methods but I'm not sure where to start, or what will suit my needs.


Directly from VirtualBox wiki:



Windows installations, unlike Linux, cannot easily be moved from one hardware to another. This is not just due to Microsoft's activation mechanism but the fact that the installed kernel and drivers depend on the actual hardware.



This is where Universal Restore could come in handy. It is a feature of True Image that allows backups to be restored to dissimilar hardware.


I want a complete disk image backup of the system disk created with True Image before I do anything. I will then reformat the system disk. And then, instead of reinstalling Windows or restoring it from backup on the host, I would like to have it restored VirtualBox.


Is it possible to go from TIB (True Image Backup) to VDI (Virtual Disk Image)? If not at all possible, can I image the system disk (with current Windows install) with another tool and have it create a VDI image?


Then there is the Sysinternals Disk2vhd v2.01 by Mark Russinovich and Bryce Cogswell. But it creates a VHD image, rather than VDI image. There is also a limitation on how big the image can be.


Directly from Sysinternals website:



Disk2vhd is a utility that creates VHD (Virtual Hard Disk - Microsoft's Virtual Machine disk format) versions of physical disks for use in Microsoft Virtual PC or Microsoft Hyper-V virtual machines (VMs). The difference between Disk2vhd and other physical-to-virtual tools is that you can run Disk2vhd on a system that’s online.


...


Virtual PC supports a maximum virtual disk size of 127GB. If you create a VHD from a larger disk it will not be accessible from a Virtual PC VM.



My system disk is 190 GB. Is there an option inside this tool that would allow me to compress it to less than 127 GB? If not then I don't see how to do it, and I would rather not use VHD format anyway.


Can someone give me some pointers? How do I do this?

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