Many legitimate third-party retailers sell "OEM keys" or "Grey Market keys" for a fraction of the retail price (often under $20). While these exist in a legal "grey area," they allow you to use the official installer from Microsoft, which is much safer than a pre-activated file.
The presence of unknown executables and autorun entries after installing pre-activated Office suggests: A. A clean installation B. Possible persistence mechanisms for malicious software C. Faster system start-up D. Improved security ms office pre activated
If you have a laptop that came with Office "pre-activated" or are considering a download, follow these steps to stay safe: Many legitimate third-party retailers sell "OEM keys" or
: Resold volume or OEM keys intended for large organizations or specific hardware. These may activate initially but can be remotely deactivated by Microsoft at any time. Critical Risks of Using Pre-Activated Software 1. Security Threats and Malware A clean installation B
: Run the installer with the /configure command to install Office with these settings already baked in, so the user never sees an activation prompt. Use Cases for Pre-Activated Office How to Activate Microsoft Office