How to Fix Google Calendar Sync Error 0x80004005 in Microsoft 365
Question details
The user is encountering synchronization failures when attempting to sync Google Calendar with Microsoft 365 Outlook.

- Product
- Microsoft 365 Outlook
- Device & OS
- Windows
- Scenario
- Syncing Google Calendar with the Outlook desktop application and web client.
- Observed behavior
- The synchronization fails with error code 0x80004005. Disabling script controls in antivirus software like Norton does not resolve the issue.
Before troubleshooting the software, verify that your internet connection is stable and that your Google account credentials are up to date.
Verify the Error Source via Outlook Web and Client Version
Determine whether the synchronization error is specific to the Outlook desktop app or affects your entire Microsoft account by checking the web client.
Error 0x80004005 is often an unspecified error in Microsoft environments. Narrowing down whether it occurs online or only on your local desktop app is the quickest way to identify the root cause.
Open your web browser and navigate to https://outlook.office.com. Log in to your Microsoft 365 account and check your calendar to see if the Google Calendar synchronization issue persists online.
If the calendar syncs perfectly on the web version, open your local Outlook desktop application on Windows to proceed with client-side troubleshooting.
In the upper-left corner of the Outlook application, click on the 'File' tab, then select 'Office Account' from the left-hand menu.
Under the 'Product Information' section, check your current Outlook version and build. Ensure your software is fully updated by clicking 'Update Options' and selecting 'Update Now'.

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If you are tired of dealing with complex synchronization errors and software glitches in Microsoft Office, consider switching to WPS Office. It provides a lightweight, highly compatible, and free alternative for all your document needs without the hassle of complicated client setups.
- 1. Download the Installer: Visit the official WPS Office website and click on the 'Download WPS Office Free' button.
- 2. Install WPS Office: Run the downloaded installer file and follow the simple on-screen prompts to complete the setup.
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Frequently Asked Questions
What does error 0x80004005 mean in Microsoft Outlook?
Error 0x80004005 is a generic 'Unspecified Error' code in Windows and Microsoft Office. In the context of Outlook calendar syncing, it usually points to an authentication failure, corrupted local application files, or network interference preventing communication with external servers.
How do I force a calendar sync in the Outlook desktop app?
You can force Outlook to synchronize your folders by navigating to the 'Send / Receive' tab on the top ribbon and clicking 'Send/Receive All Folders'. Alternatively, press F9 on your keyboard.
Does WPS Office include a calendar and email client?
WPS Office focuses primarily on powerful word processing, spreadsheets, presentations, and PDF editing. While it does not feature a standalone email and calendar client like Microsoft Outlook, its lightweight nature allows you to pair it seamlessly with any modern web-based calendar service.




