Fix Access Office 365 Apps in Microsoft 365 on Windows

This guide walks you through office apps not opening using Microsoft-supported steps first, with WPS only where it genuinely helps.

Problem Description: Access Office 365 Apps

Access Office 365 Apps prevents Microsoft 365 from working as expected. After hitting enter another window flashes real quick and returns to…

Quick Answer for Office 365 Won't Complete Task

Microsoft 365 problems are commonly caused by add-ins, damaged preferences or templates, outdated builds, unavailable resources, or a corrupted installation. Start with low-risk tests before applying a broader repair.

Likely Causes Behind Common Office Apps Not Opening Triggers

• The Microsoft account or license context may not match the purchase or device.

• Cached credentials, outdated builds, or damaged local components can trigger office apps not opening.

• A file-specific corruption or add-in conflict can mimic a broader application failure.

Recommended Solution: Transferring Office 365 License Safely

When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.

1. Open Windows Settings > Apps > Installed Apps > Look for antivirus programs like Avast, AVG, McAfee, Kaspersky... > ●●● > Uninstall > Restart your computer and see if the problem persists.

2. Test with another user to confirm if the problem is only with your current user or on the entire computer.

3. Go to System Settings (CTRL + I) > Select ''Accounts'' > 'Family and other users'' > ''Add another person to this PC'.

4. Click on the newly created user > Click "Change account type" > Under Account Type, change the option "Default User" to "Administrator" > Click "OK".

5. Press the shortcut CTRL + ALT + DEL (DELETE) > Select ''Exit'' option > On the Login screen, choose the new user created.

6. Confirm the subscription and account.

Alternative Solutions for Broader Office Apps Not Opening Workarounds

1. Retry the Microsoft-side steps after restarting the app and device.

2. Test the same action in a private browser session or a new blank file to isolate account vs file issues.

3. Run Quick Repair, then Online Repair from Programs and Features if the app still fails.

4. Capture exact error text and screenshots before contacting Microsoft Support or your administrator.

Working with WPS Office: Using WPS While Office 365 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.

1. Download and install WPS Office from the official website.

2. Open local Word, Excel, PowerPoint, or PDF files in the matching WPS app.

3. Save a working copy locally while Microsoft-side issues are resolved.

4. 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 Office Apps Not Opening

• 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.

• Document exact error messages before the next troubleshooting attempt.

FAQs About Access Troubleshooting FAQ

Can WPS Office fix this office apps not opening 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.