If you live in the United States you definitely will want to make sure your PC is updated prior to the Day Light Savings time change that will be going into effect this Sunday. For IT Professionals, this change is most unwelcome, because it requires patching all systems (like a smaller scale Y2K)
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…you will want to make sure your PC is updated by going to Windows Update, scanning, then installing the DST update. We can thank the United States Congress for this irritation.