1. Click on your computer's 'Control Panel' from the Windows Start button and select 'Add or Remove Programs.'
2. Click 'Change or Remove Programs' and select your edition of Microsoft Office in the next menu. Click 'Change.'
3. Click the '+' symbol in front of the 'Document Scanning' feature and enable its use.
4. Click 'Upgrade' and select 'Install Now' to initiate the installation of your upgraded Microsoft Office, including document scanning.