Microsoft's guarantee that its business products will have a 10-year lifecycle will boost the company's Trustworthy Computing security initiative, according to industry analysts. Users who do not upgrade when product support ends are left with vulnerable PCs, with no means of patching, said Graham Titterington, principal analyst at Ovum. "Any insecure computer on a network is a risk to the whole network," he said. In the past, Microsoft was committed to supporting a product for five years from the day it shipped. Users could then buy extended support to provide security fixes for a further two years.
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