Transformation pack

Transformation packs are programs which transform an existing Windows (or Linux) install into a crusty bootleg. These bootlegs are different in that they don't (usually) come in an ISO format, but instead require the user to run an executable in an already existing Windows install. Some bootlegs run a transformation pack executable on first bootup to transform the OS.

An example of transformation packs being used in a bootleg is Quelitu for Linux, and Windows 2001 for Windows XP, while an example of an independent transformation pack may be something like Windows 7 Transformation Pack or Windows 8 Transformation Pack, both created by WindowsX, one of the most popular transformation pack creators at the time.

Transformation packs are not typically archived in the Crusty Windows collection.