Abstract: A secured portable execution environment device could be provided by a business as a fee-based service, where a user selects applications that he wishes to license and methods of securing and backing up the execution environment. The device could be provided as a portable flash drive, which could then be plugged into any computer with any operating system to access the execution environment saved on the drive. When the user executes an application launcher on the flash drive and authenticates his identity, the application launcher allows the user to access secure applications saved on the flash drive and secure data saved in the application launcher environment.