A common search query is "Microsoft Toolkit 264" (dropping the decimal). This often leads users to unofficial download sites offering version "2.6.4." However, security researchers have noted that many files labeled "264" are actually malware-laden fakes.
Beware of file sizes:
Despite Microsoft moving to Windows 11 and Office 2021/365, searches for the ancient version 2.6.4 remain high for three reasons:
Microsoft occasionally releases updates (like KB971033 for Windows 7) specifically to detect and break KMS hacks. Once the hack is detected, Windows enters "Notification Mode" (black desktop, constant pop-ups). Sometimes the updates fail to install entirely, leaving your system vulnerable to real exploits.