This so-called "freeware" utility is in fact a FEE BASED trial version with the ALL of the advanced features disabled until you cough up the fee to upgrade.
Free Internet Eraser developer's website "Privacy Eraser Computing Inc." tries to FOOL the users by implying that it's free, but actually you need PAY for use it. Additionally, the free version doesn't erase the history from the explorer bar like it says. Also the free version doesn't offer index.dat eraser.
Save yourself from downloading Free [cough, cough, TRIALWARE] Internet Eraser and get CCleaner instead which will also clean your registry as well.