Sometimes it refers to 32-bit (x86), 64-bit (x64), and ARM64 versions. 2. Gaming Emulators and ROMs
This is the most frequent use. A "3in1" Windows ISO often includes three different editions of the same operating system in one installer, such as: Home, Pro, and Enterprise editions. 3in1.7z
with updated antivirus software (like Microsoft Defender or Malwarebytes). Sometimes it refers to 32-bit (x86), 64-bit (x64),