OneDrive error 0x8004de40

Question

OneDrive error 0x8004de40

Lewis C 0

I suddenly can't sign in to OneDrive on my work PC. It keeps showing error code 0x8004de40, although my internet connection is working fine and I can access OneDrive through the browser.

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Answer 1

Aetherin 3,845 Independent Advisor

Hi @Lewis, Contreras :),

Error 0x8004de40 specifically indicates that the OneDrive sync client cannot establish the required connection to the Microsoft cloud service, even though general internet access may still be working.

Because this is a work account on a managed work laptop, I would first recommend testing OneDrive on a different network, such as a mobile hotspot. If sign-in succeeds there, the issue is likely related to your organization's VPN, proxy, firewall, or SSL inspection configuration rather than the OneDrive service itself. In that scenario, your IT team can compare the network configuration against Microsoft's published requirements for Microsoft 365 URLs and IP address ranges.

If the same error occurs on a different network, try resetting the OneDrive client by following the steps in Reset OneDrive. Should the issue persist after the reset, I recommend involving your organization's IT administrator. Microsoft's official guidance for this error includes verifying the required TLS protocols and, particularly on Windows 10, the supported TLS cipher suites. Since these are system-wide security settings on a managed corporate device, they should not be modified without IT approval.

Additional details can be found in Error Code 0x8004de40 or 0x8004de88 when signing in to OneDrive.

Thank you for your time. If you have any further questions or any updates on the issue, please feel free to let me know.

Lewis C 0 Reputation points

2026-11-11T15:12:04.8866667+00:00

Hi Aetherin,

Thanks for the suggestions. I checked the Microsoft article you shared, but I noticed that most of the troubleshooting steps seem to be intended for Windows 10 and earlier versions. My device is currently running Windows 11 Pro, so I'm not sure whether those instructions are still applicable to my system. Would these steps still work on Windows 11, or should I follow a different approach?
Aetherin 3,845 Reputation points Independent Advisor

2026-11-11T16:54:33.4466667+00:00

Hi @Lewis, Contreras :),

Thank you for providing the additional information that you're using Windows 11 Pro.

You're correct that some of the troubleshooting steps in the article were originally intended for Windows 10 and earlier versions. However, the general connectivity checks and the OneDrive reset procedure are still applicable to Windows 11.

For your Windows 11 Pro device, I would recommend checking the TLS settings and confirming that TLS 1.2 is enabled. TLS 1.0 and TLS 1.1 are older protocols and are no longer recommended for Microsoft 365 connectivity. If TLS 1.3 is available, you can leave it enabled as well. This is a safe verification step that can help rule out common connectivity issues affecting the OneDrive client.

I would not recommend modifying Registry entries or TLS cipher-suite settings yourself, as these are system-level security configurations and should be reviewed by your organization's IT team, especially on a managed work device.

If the issue persists after these basic troubleshooting steps, I recommend involving your organization's IT administrator, as suggested above. Should they be unable to identify the root cause, they can open a support ticket with Microsoft for further investigation.
Lewis C 0 Reputation points

2026-11-12T14:02:41.72+00:00

I'll double-check the TLS settings and also reach out to our IT admin when the timing is right. I'll keep you updated if I find anything new.

Thank you for your support, Atherin :)
Aetherin 3,845 Reputation points Independent Advisor

2026-11-12T14:19:36.6+00:00

Thank you for the update, @Lewis C.

If there are any further updates, please feel free to let me know.

I'll keep an eye on this thread and will be happy to assist if any new information comes up.