Installing this collection involves patching system files. Your real-time antivirus (Windows Defender, McAfee, Norton, etc.) will likely flag the patcher as a "Potentially Unwanted Program" (PUP) or "HackTool," and will either quarantine it or block the installation.
The 2021 edition of the 2020 Master Collection features a unified visual installer script that lets you choose exactly which programs to put on your drive. Open the mounted virtual drive or extracted folder. how to install adobe master collection cc 2020 x64 2021