79.9% of businesss machines do not match Microsoft’s recommended requirements for premium-ready PCs to be upgraded to Vista, Everdream says. The biggest obstacle to a smooth transition to the new operating system is the amount of random access memory (RAM) the computers contain. Microsoft requires a baseline of 512 MB of RAM but recommends 1 GB; a mere 30% of the desktops surveyed meet the latter figure. 69.5% of machines do not have the required RAM. 62.4% of machines do not have the required hard drive. 18.4% of machines do not have the required free hard drive space. 6.7% of machines do not have the required processor speed. 79.9% of machines do not meet at least one of the above listed requirements. 93.8% of companies have at least one machine that does not meet the above requirements.