If you are actually using the software for important tasks, you don't update the OS. If you need something from a new OS, you buy another machine. It's easy to

If you are actually using the software for important tasks, you don't update the OS. If you need something from a new OS, you buy another machine. It's easy to keep your machines secured even if they are using a decades old OS. Businesses are still depending on a lot of old software and hardware, because it gets the job done with great efficiency.