It is a burning question for millions of PC users. This is surely a challenge and sometimes even a problem for many PC users. Why is it so? First of all, let us tell about this problem in more details. There are many virus programs in the cyber world today that can cause this problem. We can tell of the latest among them – File Restore, File Recovery, Data Recovery, Data Restore & Data Repair. All these programs surely have good names, but, in fact, these are malicious applications that cause danger to your file integrity. These viruses belong to the group of fake hard drive defragmenters (fake HDDs), also being referred to as bogus system optimizers. There have been many of such fake HDDs since probably the end of the year 2010, and today they are still persistent in attacking many computers all over the world, irrespective of country, gender, nationality or wealth status of active PC users.