What is an index.dat file?
Index.dat are files hidden on your computer that contain all of the Web sites that you have ever visited. Every URL and every Web page is listed there. There are three index.dat files present a. Cookies \ index.dat b. History\History.IE5\index.dat c. Temporary Internet Files\Content.IE5\index.dat. Index.dat files keep a copy of whatever data present in that respective folder and they continue keeping those records even after you have deleted the contents of those folders. Back to Privacy Toolkit FAQs!