Microsoft 365
Fixes for Microsoft 365 and Office 365 account, OneDrive and Copilot problems, including sign-in errors, full storage and apps that won't connect.
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Fixes for Microsoft 365 and Office 365 account, OneDrive and Copilot problems, including sign-in errors, full storage and apps that won't connect.
Browse guides →Excel troubleshooting guides: formulas that return 0 or turn into text, divide-by-zero errors, a missing formula bar and OneDrive connection problems.
Browse guides →Troubleshooting for Word, PowerPoint, OneNote, Access, Publisher and Exchange Online: activation prompts, missing apps, formatting bugs and file errors.
Browse guides →Step-by-step fixes for New Outlook problems: missing menus, signature and folder issues, spell check, shared mailboxes, syncing and startup errors.
Browse guides →Fixes for Microsoft Teams meeting problems: missing meeting options in Outlook, calendar sync issues, screen sharing, meeting IDs and Planner in Teams.
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New Outlook access denied usually means a policy block, a missing license, or a bad client setup. The article breaks down the checks for admins and users.
Check license assignment, tenant access, and admin settings first when SharePoint is missing from Microsoft 365.
If PowerPoint keeps not responding, start by matching the freeze point to the likely cause: add-ins, a damaged file, graphics, or Office itself.
Many Microsoft Copilot experiences use OpenAI models, but not all; it depends on the Copilot product, grounding source, and tenant settings.
Start with app, network, account sync, and the web list if Microsoft To Do won’t update. Then use the fix tree to isolate the fault.
Disable add-ins first, then test a local blank file to isolate add-ins, printer probing, startup paths, and rendering settings.
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