In a standard installation, you must enter a genuine 25-character Product Key to validate the software with Microsoft servers. Pre-activated versions bypass this step. The creators of these files typically use volume licensing keys (KMS) or modify the core internal files ( .dll files) of the installer to trick the software into believing it is legally licensed. Users simply run the setup file, and the suite opens fully unlocked without prompting for activation. The Hidden Dangers of Pre-Activated Downloads
These hide silently in the background, stealing your banking passwords, personal data, and browser cookies. Ms Office 2010 Pre Activated