System File Checker

Windows 98 has a utility called System File Checker that scans critical system files for errors and replaces any damaged files with original copies from the Windows 98 Installation CD. Click on the Start button then point to 'Programs->Accessories->System Tools->System Information'. From the Tools menu, Click on 'System Files Checker'. Click on the 'Scan For Altered Files' button then click 'Start' to scan your hard drive.