Fix OneDrive Error 0x80048504 When Starting a Session
Question details
The user needs to resolve an issue where the OneDrive desktop application fails to start or complete the sign-in process, displaying a specific error code.
- Product
- Microsoft OneDrive
- Device & OS
- Windows
- Scenario
- Starting the OneDrive application or attempting to sign in to sync files.
- Observed behavior
- OneDrive cannot start and prompts the user with error code 0x80048504.
Log in to Office.com via your web browser first to verify if your OneDrive account and files are accessible, which confirms the issue is isolated to your local computer or network.
Disable Security Software and Reset Network Connections
Third-party security tools or network misconfigurations can block OneDrive from connecting to Microsoft's servers, triggering the 0x80048504 error.
Often, VPNs, proxy servers, or overly restrictive antivirus firewalls intercept the secure connection OneDrive requires to start a session.
Turn off any active VPN connections. Then, open Windows Settings > Network & internet > Proxy, and ensure 'Use a proxy server' is toggled off.
Pause your third-party antivirus or firewall protection temporarily. If you use Windows Defender, go to Windows Security > Firewall & network protection, and temporarily turn off the active network firewall.
Open Windows Settings > Network & internet > Advanced network settings > Network reset. Click 'Reset now' and restart your computer before launching OneDrive again.
Reinstall OneDrive and Test a New Windows Profile
If network troubleshooting fails, the OneDrive installation or your current Windows user profile might be corrupted.
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Frequently Asked Questions
What causes OneDrive Error 0x80048504?
This error typically occurs when OneDrive is blocked from establishing a secure session with Microsoft servers. Common causes include restrictive third-party antivirus software, active VPNs, proxy misconfigurations, or a corrupted Windows user profile.
Will reinstalling OneDrive delete my locally synced files?
No. Uninstalling and reinstalling the OneDrive desktop application only removes the software itself. Your files remain safe in your local OneDrive folder and in the cloud.
How do I know if the issue is with my account or my computer?
You can determine this by logging into Office.com via a web browser. If you can access your OneDrive files on the web without any issues, your account is fine, and the error 0x80048504 is localized to your computer's software or network settings.
