If you have broadband access (cable, DSL, or other high-speed access), try turning your modem off for a minute and then turning it back on. If you also have a router connected to the modem, turn it off for a minute and then back on again. Once you've established a web connection, try accessing the iTunes Store again from iTunes.
Check for updates to Windows, or search Microsoft's support pages for KB931125. An update may be available, such as Update for Root Certificates [May 2010] (KB931125). Install the latest available update for root certificates from Microsoft.
If the issue continues, follow the steps in the Microsoft knowledge base article 822798 to resolve the issue. Note that while the Microsoft article describes a different issue, both issues share the same cause and solution.作者: fishchia 时间: 2010-7-29 19:18:13