Claiming to prevent the unauthorized distribution of Windows 8 Beta the software company listed 65 “infringing” web pages. However, nearly half of the URLs that Google was asked to remove from its search results have nothing to do with Windows 8.
via Microsoft DMCA Notice ‘Mistakenly’ Targets BBC, Techcrunch, Wikipedia and U.S. Govt | TorrentFreak.
Judging from the page titles and content the websites in question were targeted because they reference the number “45″.