Even if you find a clean copy of SPSS 16, you will face technical hurdles. SPSS 16 was designed for Windows XP, Windows Vista, or early versions of Windows 7.
Many users who do own legitimate copies struggle to install SPSS 16 on Windows 10 or 11 due to missing DLL files (like MSVCRT71.dll ) and compatibility errors. It is possible to force it to run using "Windows XP Mode" or a virtual machine (like VirtualBox), but this is an advanced process. free download spss 16