Do you still have QuickTime for Windows on your PC? Get rid of it, pronto. That’s the advice coming from the U.S. Computer Emergency Readiness Team (US-CERT), following an“urgent call to action” by cybersecurity firm Trend Micro. The version of QuickTime on Apple computers is not affected. What’s the rush? Trend Micro found two critical flaws in the PC version of Apple’s media-playing software that could let hackers take over victims’ computers. And is Apple fixing the flaws?