
OneDrive Troubleshooting Guide for Mac Users
OneDrive on Mac can sometimes stop syncing, fail to open, or run slowly. This guide covers the mo...
Software troubleshooting desk

OneDrive on Mac can sometimes stop syncing, fail to open, or run slowly. This guide covers the mo...

You're running a command in Command Prompt and get hit with "Authentication failed" or "Access de...

You open Outlook and get an error: 0x80040154 — "Class not registered" or "module no...

You're trying to activate Windows, but the activation screen just sits there saying "Activating" ...

You're running Windows Defender and it throws a proxy error—often during an update or a full scan...

After a recent Windows or Office update, you might see “OneDrive sync is unavailable” or the sync...