Microsoft 365 Error Codes

How to Fix Office Sign-In Error 7q6ca and Code 1067 After Windows Update

Amos Gikunda Sep 29, 2026 870 views

Question details

The user is unable to sign in to Microsoft Office and Microsoft Edge, encountering error codes 7q6ca and 1067 following a Windows 24H2 update.

How to Fix Office Sign-In Error 7q6ca and Code 1067 After Windows Update

Product: Microsoft Office
Device & OS: Windows
Scenario: Attempting to sign in to Microsoft Office applications or Edge after updating the Windows operating system to version 24H2.
Observed behavior: Sign-in fails continuously with error codes 7q6ca and 1067, caused by corrupted credentials, identity caches, or security software conflicts after the update.

Before you start

Ensure your Windows operating system and Microsoft Office applications are fully updated to the latest builds before attempting more advanced troubleshooting steps.

Solution 1Recommended

Clear Microsoft Credentials and Identity Caches

Removing corrupted cached credentials often resolves authentication conflicts after a Windows update.

Windows stores your sign-in details in the Credential Manager and local application data folders. After a major update like 24H2, these caches can become corrupted, preventing successful authentication.

Open Credential Manager

Click the Windows Start menu, type 'Credential Manager', and press Enter to open the utility.

Remove Office Credentials

Select 'Windows Credentials' and locate any entries related to Microsoft Office or your Microsoft Account. Click the drop-down arrow next to the credential and select 'Remove', then confirm.

Delete Identity Caches

Press Win + R, type '%localappdata%\\Microsoft\\', and press Enter. Locate and delete the 'IdentityCache' and 'OneAuth' folders, then restart your computer and attempt to sign in again.

Clear Microsoft Credentials and Identity Caches

Important: Deleting these folders will not delete your personal files or documents, but you will need to enter your password again when signing into Office.

Solution 2

Repair Microsoft Office Installation

A built-in system repair can fix damaged authentication components causing sign-in failures.

Solution 3

Troubleshoot Antivirus Software and Perform Windows Repair

Third-party antivirus programs or recent system changes might interfere with the authentication process.

Free Microsoft Office alternative

Try WPS Office for a Hassle-Free Experience

If Microsoft Office continues to block your productivity with frustrating sign-in errors like 7q6ca or 1067, consider switching to WPS Office. It provides a lightweight, reliable, and completely free alternative without the complex authentication loops.

1. Download the Installer: Visit the official WPS Office website and download the free installation package.
2. Install the Software: Run the installer and follow the simple on-screen instructions.
3. Open Your Files: Instantly open and edit your existing Microsoft Office files without any sign-in errors.

Fully compatible with Microsoft Word, Excel, and PowerPoint formats (.docx, .xlsx, .pptx)No complicated sign-in requirements to access basic local editing featuresLightweight installation that runs smoothly even after major Windows updatesFamiliar user interface requiring zero learning curve

microsoft office alternative - wps office

Frequently Asked Questions

What causes error code 1067 in Microsoft Office?

Error 1067 usually indicates a breakdown in the authentication process. It is often triggered by corrupted cached credentials, identity cache issues, or system component changes after a major Windows update like 24H2.

Can my antivirus software cause Office sign-in errors?

Yes, some third-party security programs can block Microsoft's authentication components (like the Web Account Manager) from communicating with the server. Temporarily disabling the software can help identify if it is the culprit.

Will repairing Microsoft Office delete my files?

No, running an Online Repair or Quick Repair from Windows settings only replaces damaged application files and registry keys. It will not affect your personal documents, spreadsheets, or presentations.

Microsoft Office Error Codes