Business PC's Cannot Be Upgraded
The truth is they can be upgraded, however we have never ever seen a cost effective or performance effective solution that would have us recommend upgrading a PC versus outright PC replacement.

We recommend steering away from cheap upgrades. In our extensive experience we have found that Ironically its the people with the least experience in computers who attempt this path and in many cases attempt it themselves. This cannot be overstated enough, in a business environment, is just not cost effective.

The cost for windows support of older operating systems is expensive, many desktop support consultants would never have worked on an OS like Windows 95 or Windows NT.

The cost to maintain, much like a car is higher as it gets older, it takes longer to boot, its harder to work on, and is likely to break more often.

Replace a desktop PC every 3 years.