Many admins mistakenly run the OffScrub (Office Scrubber) script inside an active user profile. Office embeds itself into the User Profile's Registry.Usr hive. If you remove Office system-wide but the user profile remains, the new installation will inherit corrupt Outlook .NK2 autocomplete cache and broken Send to OneNote printer drivers.
Microsoft Office Removal Tool: A Complete Guide to a Clean Uninstall microsoft office removal tool
Below is the technical workflow for a clean-state removal. Many admins mistakenly run the OffScrub (Office Scrubber)