Software never dies. Code is for ever. Its the hardware that ages.

Our very existence may be merely an operating system running on a bare bone chassis when we are born. We could beaf up the chassis as we grow up to certain hardware and software limitations. You can install and remove applications as you go but operating system stores that in a log file. You get viruses and sometimes could corrupt files when trying to run applications that are not compatible or meant for the hardware. Some of which can be restored and fixed depending on the value of the existence of this system while others leave a permanent damage. If you corrupt a system file then you could only copy the exact same file from another matching hardware and operating system. You will be restored anytime to your last existing working condition from the last known working backup image at some undetermined time in the future. Depending on your log file and history you would be evaluated to have a value to be permanently restored on a VM with unlimited resources beyond what an operating system needs or could handle on a physical single hardware.