Windows 2000 is still being used by half of large organisations, four years after Microsoft released Windows XP according to a study from AssetMetrix Research Labs.
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In the first quarter of this year, AssetMetrix found 48% of corporate IT departments were running Windows 2000 desktop, down only 4% from Q4 2003.
Windows XP rose from 6.6% to 38% during the same period. Windows 95 and Windows 98 were reduced from a collective 28% to less than 5%, and Windows NT fell from 13.5% to about 10%.
Microsoft Windows client product manager, Janet Gibbons, said, "We do have a large installed base of people running Windows 2000. But in the UK, XP is the dominant OS with around 40% of enterprise customers using it".
Steve O'Halloran, MD of AssetMetrix, said, "Companies re-deploying PCs, without a policy to manage and support their OSs, will have their Windows XP transition rate dictated by PC obsolescence rather than by intelligent planning and forecasting."
AssetMetrix analysed over 150,000 Windows PCs in over 200 companies, ranging in size from 20 to 54,000 employees.