An optional update to Windows closes a number of hacks that counterfeiters have used to bypass the product activation technologies built into Windows 7. With the update, Windows will try to restore Windows to its proper state, as well as marking tampered versions as non-genuine copies of the operating system. Microsoft said on Thursday that it is planning an update to Windows 7 that will close a number of loopholes that counterfeiters had used to thwart the operating system's built-in antipiracy measures. The Windows Activation Technologies Update for Windows 7, which will be released later this month, closes more than 70 "activation hacks," according to Joe Williams, general manager of Microsoft's Genuine Windows unit, responsible for anti-counterfeiting measures. The update will also check with a server periodically to see if there are further hacks that need to be addressed, though Williams said no personally identifiable information about the user will be sent to...