How to Repair Internet Explorer 6 With SP3

Install Service Pack 3
1. Go to the Microsoft Download Center at Microsoft.com and download the stand-alone update package for Service Pack 3 to your system. Click the 'Download' button on the page to continue.
2. Click the 'Start Download' link on the page if the download does not start within 30 seconds.
3. Click the 'Save File' button and then select a location for the saved file. Click the 'Save' button to begin the download.
4. Double-click on the downloaded file to install or reinstall Service Pack 3 on your system. Restart your computer, if prompted, and then try to run Internet Explorer 6 again.
File System Checker
5. Click the 'Start' button and then go to the 'All Programs' option. Go to the 'Accessories' program group and select the 'Command Prompt' option.
6. Type 'cd..' and press the 'Enter' key. Repeat this step to go to the root of the C drive.
7. Type 'sfc /scannow' and then press the 'Enter' key. Wait while the File System Checker scans your system.
8. Close the command prompt window when the File System Checker completes the scan and then restart the computer.