US Patent 7272549 Restoring base configuration on software testing computer

A method of testing computer software. A test computer has a base configuration, which is imaged to a removable hard drive. The base configuration is then stored in data storage of a master computer, as a master configuration image. The software is then tested on the test computer, and after the testing, a portable boot drive is used to acquire the master image and to restore the base configuration to the test computer.