The reason, as summed up by ChannelWeb:
During beta testing for Vista SP1, Microsoft found that some device drivers were causing problems on systems with SP1 installed. Although the issues can be fixed by uninstalling and reinstalling the drivers, Microsoft decided this would be too complicated for most users. As a result, Microsoft will spend the next month hunting for additional problematic device drivers, said David Zipkin, senior product manager in Windows Client Group.
Come mid-March, users will be able to download the selected languages of SP1 either via Microsoft Download Center or as an optional item in Windows Update. In mid-April, SP1 will automatically be pushed to systems with the automatic update option enabled. Full language support for SP1 will be available before the end of April.
Most businesses traditionally wait for the first service pack of new Microsoft releases before hopping on board. Indeed, the experiences of SP1 beta testers tell us of a much improved product that appears to have fixed many of the initial problems. Will you be installing SP1 when it becomes available in March?
Paul Mah is a writer and blogger who lives in Singapore, where he has worked for a number of years in various capacities within the IT industry. Paul enjoys tinkering with tech gadgets, smartphones, and networking devices.