Can't connect to OneDrive from my PC!

Your error 0x8004de40 means:

"There was a problem connecting to OneDrive" — specifically, it can't establish a secure TLS connection with Microsoft's servers.

Check Your Internet Security Settings via Internet Options

Even though TLS is enabled, other settings might block OneDrive.

Press Win + R, type: inetcpl.cpl

Go to the Advanced tab

Ensure these are enabled (✔):

Use SSL 3.0 (optional for legacy only)

Use TLS 1.0 (try enabling it temporarily)

Use TLS 1.1

Use TLS 1.2

Use TLS 1.3

Click Reset advanced settings (bottom right)

Apply and reboot

Reset OneDrive Completely

This clears OneDrive’s saved state and forces a fresh reconnect.

Run this in the Run dialog (Win + R):

%localappdata%\Microsoft\OneDrive\onedrive.exe /reset

If OneDrive doesn’t restart after 1–2 minutes, start it manually:

%localappdata%\Microsoft\OneDrive\onedrive.exe

Disable Proxy (if active)

• Go to Settings > Network & Internet > Proxy
• Turn everything off (especially if “Use a proxy server” is enabled)

Also check via Command Prompt:

netsh winhttp show proxy

If it shows a proxy, reset it:

netsh winhttp reset proxy

Maybe some third-party security software (e.g., Kaspersky, Bitdefender) block OneDrive connections.

Try disabling your antivirus temporarily and check if OneDrive connects.

My answers are voluntary and without guarantee!

Hope this will help you.

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