April 8, 2013 marks the end of an era. Windows XP —the operating system Microsoft first released way back in 2001— will no longer be supported. Actually, mainstream support was wound down in 2009, but April 8 marks the official end of extended support. You can bet that a whole lot of cyber criminal types are eagerly counting down the minutes until Microsoft ceases to release Windows XP security updates. If you have a PC that’s still running XP, now is the time to take action. It may be bit of a hassle, but upgrading your machine to Windows 8.1 is going to save you a lot of potential effort and grief from an expected flood of malware targeting Windows XP machines. For many owners of older PCs, this event might even mark the point where it makes more sense to simply replace that aging computer with a new one and skip the OS upgrade routine altogether.