When Office stops working as expected, start with the shortest official checks before you reinstall anything.
Problem Description: Product Key Forget Username
I have purchase microsoft 365 and it's product key is redeemed by email id which i have forgotten. How Can i get which email id is redeemed?
Quick Answer for Office Won't Complete Task
To recover the email address associated with your redeemed Microsoft 365 product key, check other email accounts for purchase or activation emails from Microsoft.
Likely Causes Behind Common Password Triggers
The Microsoft account or license context may not match the purchase or device.
Cached credentials, outdated builds, or damaged local components can trigger password & account recovery.
A file-specific corruption or add-in conflict can mimic a broader application failure.
Recommended Solution: Fixing Password Step by Step
When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.
Visit the Microsoft account recovery page and try entering any email addresses you might have used.
If unsuccessful, contact Microsoft Support for assistance.
Also, check purchase receipts for the email address used during the transaction.
Alternative Solutions for Broader Password Workarounds
Retry the Microsoft-side steps after restarting the app and device.
Test the same action in a private browser session or a new blank file to isolate account vs file issues.
Capture exact error text and screenshots before contacting Microsoft Support or your administrator.
Working with WPS Office: Using WPS While Office Is Unavailable

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 Avoiding Repeat Password
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.
Register more than one MFA method and keep recovery contacts current.
FAQs About Product Troubleshooting FAQ
Can WPS Office fix this password & account recovery 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 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.




