FANTASTIC 5 DISC MUST HAVE SET! JUST PLACE DISC 1 "DBAN" IN YOUR PC's DVD OR CD DRIVE AND RESTART YOUR MACHINE. THE DBAN PROGRAM DISC WILL WIPE ALL YOUR FILE's AND DATA TO DEPARTMENT OF DEFENSE STANDARDS (DoD) AND BLANK OUT YOUR HARD DRIVE. YOUR HARD DRIVE WILL BE CLEAN & READY TO RELOAD YOUR WINDOWS OPERATING SYSTEM AGAIN IN CASE YOUR MACHINE PICKED UP A VIRUS THAT IT CANNOT RECOVER FROM OR YOU JUST WANT A CLEAN HARD DRIVE TO LOAD A NEW OPERATING SYSTEM YOU JUST PURCHASED FOR YOUR UNIT OR ONE OF THE LINUX OS THAT COME IN THIS PACKAGE. ( IF POSSIBLE REMEMBER TO BACKUP ALL YOUR PHOTO'S AND MUSIC AND SUCH TO A SEPARATE MEDIUM LIKE CD SINCE THE DBAN WILL CLEAN THEM OFF YOUR HARD DRIVE FOREVER!!!) THIS IS ALSO GREAT FOR WHEN YOU WANT TO DONATE OR GET RID OF YOUR OLD PC AND WANT TO MAKE SURE ALL YOUR PERSONAL INFO WILL NOT GET IN THE WRONG HANDS. ALL YOUR PERSONAL DATA WILL BE UNRECOVERABLE. ON THE OTHER SIDE OF THE COIN IF YOU BUY OR RECEIVE A USED PC OR LAPTOP YOU REALLY HAVE NO IDEA WHATS REALLY ON IT'S HARD DRIVE. THERE COULD BE SOMETHING ON IT THAT COULD SEND YOU TO PRISON OR WORSE. WHY TAKE A CHANCE. JUST BOOT AND NUKE. THIS KIT ALSO COMES WITH 4 REPLACEMENT OPERATING SYSTEM DISC'S THAT ARE LINUX BASED AND REQUIRE NO KEY OF ANY TYPE. YOU CAN USE THESE AS MANY TIMES AS YOU WANT AND ON AS MANY MACHINES YOU LIKE!  YOU GET UBUNTU 15.10 32 AND 64 BIT ON A SINGLE DISC & 12.04 32 BIT FOR NEWER MACHINES AND UBUNTU 9.04 & 9.10 FOR OLDER MACHINES. A TOTAL OF ALL 5 DISC'S WILL BE SENT TO COMPLETE THE PACKAGE.  ALL DISC'S WILL BE BURNED ONTO QUALITY BRAND NAME BLANKS! I HAVE USED THIS PROGRAM AND IT WORKS GREAT. THE DBAN DISC EVEN LET'S YOU KNOW IF THERE IS A BAD SECTOR ON A HARD DRIVE. IF YOU DO NOT LIKE THE PROGRAM JUST SEND IT BACK FOR A REFUND. THANKS FOR LOOKING.