Use your original product key or the Microsoft account associated with the purchase to activate the software. 2. Best Free Alternatives

Programs that record your keystrokes to steal passwords and credit card information. 4. Modern Options (Microsoft 365)

This is the most popular open-source alternative. It is completely free, updated regularly, and can open/save Microsoft Office files (.docx, .xlsx, etc.).

For a collaborative, browser-based experience, Google Docs, Sheets, and Slides are the industry standard for free productivity tools. 3. Safety Warning: Avoiding Malware

Log in to your Microsoft Services & Subscriptions page.