IE 10 for Windows 7 and Server 2008 R2 has been released as a free tool to stop you upgrading to IE 10 on Windows 7. Microsoft is making sure that as soon as IE 10 is ready, youre already ready to avoid it. The tool is a sort-of lesser of two evils solution for change control conservatives. Microsoft has been there before, with IE 6 staying on shelves so far past its use-by data that the company came up with iecountdown.com, an entire website devoted to weaning people off from IE6.”]
Source: https://nakedsecurity.sophos.com/2013/02/01/ie-10-is-more-secure-prevent-update/