Using the System File Checker (SFC)

Sometimes when installing third party software, it may overwrite important operating system files. This can cause Windows or its applications to become unstable or fail altogether.

Windows includes a utility that can scan for problems, and replace the operating system files that may have been overwritten. This tool is called the 'System File Checker' (SFC), to access this tool follow the instructions below:

• From the Start menu, select the Run... command
• In the Run dialog box, type: "sfc /scannow" and press the Enter key.

The SFC will start scanning all protected Windows files and verify that they're the correct version. If they're not, the incorrect or missing files will be replaced. You may be prompted to insert your Windows XP installation CD if a problem is detected.