tailieunhanh - Windows 7 all in one for dummies PHẦN 8

Rất nhiều người bị nhầm lẫn về sự khác biệt giữa Media Center và Windows Media Player (WMP). Không để cho sự giống nhau trong tên gây ra bất kỳ chứng ợ nóng. Trong thực tế, Media Player (xem Sách IV, Chương 1) chỉ là một thành phần của Media Center - đó là một phần của Media Center có thể chơi nhạc, phim ảnh | Am J infected 607 Someone tells you that you sent him an e-mail message with an attachment and you didn t send it. In fact most e-mail malware these days is smart enough to spoof the From address so any infected message that appears to come from you probably didn t. Still some dumb old viruses that aren t capable of hiding your e-mail address are still around. And if you receive an infected attachment from a friend chances are good that both your e-mail address and his e-mail address are on an infected computer somewhere. Six degrees of separation and all that. If you receive an infected message look at the header to see whether you can tell where it came from. In Outlook 2003 and earlier open the message and then choose View1 Options. In Outlook 2007 you have to open the message and then click the tiny square with a downward right-facing arrow in the lower right corner of the Options group. A box at the bottom may or may not tell you who really sent the message as shown in Figure 1-6. Book VI Chapter 1 Figure 1-6 The box at the bottom contains the e-mail header which may give you a clue to its origin. Lock Down Spies Spams You suddenly see files with two filename extensions scattered around your computer. Filenames such as a VBScript file masquerading as a JPG image file or a Windows program that wants to appear to be a text file should send you running for your antivirus software. Always always always have Windows show you filename extensions see Book II Chapter 1 . 608 Am Ị Infected Your antivirus software suddenly stops working. If the icon for your antivirus product disappears from the notification area near the clock something killed it and chances are very good that the culprit was a virus. You can t reach Web sites that are associated with antimalware manufacturers. For example Firefox or Internet Explorer works fine with most Web sites but you can t get through to or or . This problem