Microsoft Toolkit 2.6 Beta 5 is a preliminary version of a popular, third-party software utility primarily used to bypass activation restrictions for Microsoft Windows Microsoft Office Primary Functions Software Activation
: Almost all antivirus programs, including Windows Defender, will flag the toolkit as a "PUP" (Potentially Unwanted Program) or a "HackTool" because of its nature in modifying system files. Microsoft Support toolkit 2.6 beta 5