Windows Vista was officially released to the public on 30th January this year, and the "wow" effect seems to be working so far. During its first week, Vista contributed to a 73% jump in US PC sales compared to the previous week, and sales were up 67% compared to the same time last year. Home Premium accounted for 59% of desktop sales and 76% of notebook sales, whilst home basic made up 33% and 16% respectively, suggesting users prefer the more expensive version. The figures were collected from five of the major retailers, Best Buy, Circuit City, CompUSA, Staples and Radio Shack.