5 things you can try if you are having problems installing Internet Explorer 8

  1. Reset Windows security settings back to the defaults 
  2. Scan your computer for malware
  3. Temporarily disable antispyware and antivirus software
  4. Start your computer in a "clean boot" state
  5. Check for any files that cannot be backed up or updated

Make sure also you have these prerequisites for installing Internet Explorer 8

Get more help for Internet Explorer 8

Rob