Simple Computer Tune-up: Speed Up Your PC- P30: As more and more software becomes available and computers increase in complexity, problems with performance are cer- tain to arise. If your PC is misbehaving, don’t let it ruin your book explains how to make the best out of your PC by using PC Pitstop Optimize, which cures many PC “sicknesses” with- out the need for upgrading or replacing your existing PC. | Chapter 11 Fix Internet Issues 127 Use the System File Checker Yet another possible cause of your Internet woes is corruption that has occurred in Windows critical system files. By using a program called System File Checker you can search for and automatically repair any of these damaged files. Here s how 1. Click the Start button in the lower-left corner of Windows. 2. Click Run. 3. A window opens. Type sfc scanow in the blank see Figure 11-8 and then click the OK button or press the Enter key. Figure 11-8 Accessing the System File Checker 4. Windows scans your computer to determine whether or not your system files are corrupted. If any files need to be replaced a message may pop up and ask you to insert your Windows XP CD-ROM. Follow the on-screen instructions. 5. If repairs are made your damaged files may be overwritten by older versions. As a result some recent security updates and patches may no longer work properly. This could make your computer vulnerable to Internet threats like worms and hackers. To restore your protection visit the Windows Update website to re-download the patches. Back Up Your Bookmarks During your many Internet journeys you have probably collected countless bookmarks that can whisk you away to your favorite websites with one click of the mouse. If your bookmarks are erased you ll probably have a difficult time finding your way back to some of those sites so don t take any chances back up your bookmarks today. Follow these steps 1. Open Internet Explorer. 2. Click the File drop-down menu. 128 Part III Bonus Material 3. Select Import and Export. 4. The Import Export Wizard opens. Click the Next button. 5. Select Export Favorites and then click the Next button. 6. To export all of your bookmark folders click the Next button. To export only one folder click its name and then click Next. 7. Under the Export to a File or Address heading click the Browse button. 8. A window opens that allows you to choose the location on your computer where .