All ten of the patches were released as part of the monthly update schedule. The three critical patches fix problems in Windows and Internet Explorer that could potentially let hackers remotely control your PC.
The bug in Internet Explorer allows web pages with malicious code stored in the form of PNG graphic files, to give a hacker remote access to your computer.
Like JPG or GIF, the PNG graphic format is growing in popularity due to its high compression capabilities. Earlier this year another PNG security flaw was found exploiting vulnerabilities in Windows Media Player and MSN Messenger related products.
Other bugs include a flaw in the Windows HTML help system.
Look for the latest security patches to be available on the Windows Update site.