Index. Dat files are used by Internet Browsing software to keep all the files you have browsed over Internet. When you view these files using Windows Explorer, Windows automatically extracts these files. Essentially, these files are kept in locked Index.Dat files.
Eliminating these files becomes very necessary as they prove serious threat to your privacy. Using Windows Washer shall ensure permanent shredding of these files from your system, thus providing you a safe browsing environment.