Using your computer’s hardware secretly to mine cryptocurrency, slowing down your system. 2. Lack of Crucial Security Updates
Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support Portable Microsoft Office 2019
Several third-party tools, such as EaseUS Todo PCTrans, claim to be able to migrate an existing Microsoft Office installation from your computer's internal drive to an external drive like a USB stick. These tools work by attempting to capture not only the program files but also the relevant registry entries and configuration data, packaging them in a way that can be relocated. Microsoft Support Several third-party tools, such as EaseUS
According to a 2023 report by Kaspersky , 1 in 5 downloads of “cracked portable office” contained a password stealer. You are not just risking a broken app; you are risking your identity. You are not just risking a broken app;