The drama began yesterday as Windows 10 users suddenly found that Search was broken with a black bar showing where search results should be, even for those who tried to perform a local search of their files. Breaking with tradition (1,2,3,4,5), Microsoft was fast to act blaming “a temporary server-side issue”. But the explanation instead kicked a hornet’s nest. First, the fix doesn’t work for everyone. Second, and more worryingly, Microsoft’s explanation doesn’t add up and it has prompted serious questions to be asked about how the operating system works and what personal data it is sharing.