If your workflow is blocked, confirm the account and app context, then follow the ordered fixes below.
Problem Description: Question About Office 365
Should I uninstall the LTSC completely before active the M365 office license ? I have the worksheet Excel 2021, many formulas in there, when I change to O365 ? Are there any affected on that FYI, Im using Office on Apple Environment thanks
Quick Answer for Activation Problems Quick Fix
It's recommended to uninstall the LTSC version before installing or activating Microsoft 365 apps.
Likely Causes Behind Office 365 Failure Patterns
The Microsoft account or license context may not match the purchase or device.
Cached credentials, outdated builds, or damaged local components can trigger activation problems.
A file-specific corruption or add-in conflict can mimic a broader application failure.
Recommended Solution: Restoring Office 365 After Errors
When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.
Your Excel formulas shouldn't be affected since they are generally backward compatible.
Alternative Solutions for Fallback Options for Activation Problems
Test the same action in a private browser session or a new blank file to isolate account vs file issues.
Run Quick Repair, then Online Repair from Programs and Features if the app still fails.
Capture exact error text and screenshots before contacting Microsoft Support or your administrator.
Working with WPS Office: Editing Files in WPS During Activation Problems

WPS Office cannot replace Microsoft account, activation, or cloud fixes for this scenario. It remains one of the best free Microsoft Office-compatible alternatives for opening and editing local files.
Download and install WPS Office from the official website.
Open local Word, Excel, PowerPoint, or PDF files in the matching WPS app.
Save a working copy locally while Microsoft-side issues are resolved.
Return to Microsoft Office after the primary fix succeeds.
If you need a practical local workspace in the meantime, try WPS Office.
Prevention Tips for Smooth Office 365 Device Transfers
Keep one primary Microsoft account for subscriptions and Office sign-in.
Install updates for Office and Windows before retrying failed workflows.
Back up important files before repair, reset, or reinstall actions.
Buy Office from official channels and record the redemption account.
FAQs About Activation Problems Help Topics
Can WPS Office fix this activation problems issue directly? Only when the WPS steps match the formatting or file task. Account, activation, and cloud issues stay on the Microsoft side.
Should I reinstall Office 365 before trying these steps? Not first. Confirm account, license, and the exact error before reinstalling.
What should I send to Microsoft Support? The affected account email, device type, Office version, exact error text, and screenshots with personal data hidden.





