Microsoft Toolkit 251 Upd [verified]
: Added the ability to switch channels for Microsoft Office 2013 SP1 "pure" editions.
Fixed issues where the Client Machine ID (CMID) would not show correctly depending on the operating system's WMI SPP provider. microsoft toolkit 251 upd
For users seeking free or affordable productivity tools without security risks, consider these legitimate options: Free Office 365 for Students and Educators - Microsoft : Added the ability to switch channels for
Beyond the security risks, using version 2.5.1 makes little functional sense for modern setups: Microsoft Toolkit 2
: Version 2.5.1 and 2.5.2 are noted for supporting activation without an active internet connection.
Microsoft Toolkit 2.5.1 is designed to work with legacy and mid-range Microsoft versions: Vista, 7, 8, 8.1, and Windows 10. Office: 2010, 2013, and 2016. Important Considerations Microsoft Toolkit for Office Activation | PDF - Scribd