In the coming months Microsoft will be ending support—including security updates—for a number of important products. If you've avoided updating so far, you might want to get moving.
The first event will be April 13, 2010 (like all end-of-support days, a "Patch Tuesday"), when support will end for 2 important configurations: Windows Vista with no service packs (a.k.a. Vista RTM and Vista SP0), and Windows XP SP2. If you are running these versions after that April 13 you will no longer receive updates or support. In each case, the answer is obvious: Apply the latest service pack (SP2 for Vista, SP3 for XP). Better yet, if you're running XP, go get a new PC running a secure operating system, such as Windows 7.
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