Installation (Xp/Vista/Win 7) Double click 'Setup.exe' and follow the step by step to complete the installation. Registration Go to  http://www.bak2u.com/activate.php to register the software. Enter the given Unlock Key into any of the locked folders in the computer. Testing Create any new folder on the desktop and place any unimportant files in it. Rightmouse click and select 'Lock/Unlock Folder' to lock the selectedfolder. Set a password to lock and all files will 'disappear' from thefolder.   To unlock, right mouse click and select 'Lock/UnlockFolder' and enter the correct password to access. ContactUs