I have one notebook with Windows 7 and drive encryption installed. All disk was encrypted. Is possible to install Ubuntu Linux using WUBI installer (Wubi - Community Help Wiki)?
The text bellow was copied from Wubi (software) - Wikipedia, the free encyclopedia:
The project's aim was to enable existing Windows users, unacquainted with Linux, to try Ubuntu without risking any data loss (due to disk formatting or partitioning mistakes). It could also safely uninstall Ubuntu from within Windows. It is not a virtual machine, but creates a stand-alone installation within a loopmounted device, also known as a disk image, likeTopologilinux does. It is not a Linux distribution of its own, but rather an installer for Ubuntu. While Wubi does not install Ubuntu directly to its own partition this can also be accomplished by using LVPM, the Loopmounted Virtual Partition Manager, to transfer the Wubi-generated Ubuntu installation to a dedicated real partition, including a bootableUSB keydrive. The advantage of this setup is that users can test the operating system and install the drivers before they install it to a dedicated partition (and avoid booting and functioning risks). Wubi adds an entry to the Windows boot menu which allows the user to run Linux. Ubuntu is installed within a file in the Windows file system (c:\ubuntu\disks\root.disk), as opposed to being installed within its own partition. This file is seen by Linux as a real hard disk. Wubi also creates a swap file in the Windows file system (c:\ubuntu\disks\swap.disk), in addition to the memory of the host machine. This file is seen by Ubuntu as additional RAM.