Patent ID: 8549273

Claim:
A computer system comprising: a. A personal computer system comprising at least: i. a system drive controller; ii. a first internal storage device attached to said system drive controller through a first internal bus; iii. said first internal storage device is a bootable system drive; iv. a first external bus connected to said internal bus through a first external bus controller; v. a first external storage device residing outside of said computer system and attached to said first external bus; vi. a system BIOS operating to boot an operating system from said bootable system drive or from said first external storage device; b. said personal computer system operating a first software program residing on said system drive, which is programmed for: i. creating at least one bootable partition on said first external storage device; ii. copying software and data residing on said system drive to said first external storage device effective such that said first external storage device is bootable; and iii. automatically setting a system variable residing on said first external storage device that specifies a unique desktop background wall paper to be displayed when said first external storage device is used as the boot device when attached to the said first external bus c. said first software program will, upon first being executed after the system is booted, detect when said first external storage device has been substituted for said system drive will, automatically set said system variable to use an original desktop wallpaper in response to said detecting.