If you're not sure which operating system you have, see Which Windows operating system am I running? If you're not sure how to decide between 64-bit or 32-bit, see Choose the 64-bit or 32-bit version of Office 2016.

Uninstall Office for Mac

Use the Excel check troubleshooter to resolve Excel for Windows startup, hang, or crash issues. When you open the main productivity apps like Word, and Excel, on the main page you should be able to see all files you opened recently. Check if CAPSLOCK is turned on, and check the spelling of the password you try to enter. As passwords are sensitive to small changes, you shouldn’t copy your passwords from anywhere (like textfiles, skype’s conversations), instead try to enter it manually.

Install the 64-bit version of Office instead of the 32-bit version

If you're an admin and you aren't sure what plan you have, follow the steps in What Office 365 for business subscription do I have? For a comparison of plans, see compare small business plans or compare enterprise plans. To troubleshoot Mac activation issues, see the "Activation" tab on What to try if you can't install or activate Office for Mac. If there's a Learn More link on the error message, select that. If there's no link, let us know what error you got and where you were in the install process when you received it. Leave us a comment at the bottom of this page to let us know more about your issue.

The Office 365 repair tool can help you fix the majority of Office 365 problems for installed Office 365 applications (not applicable if you use online apps only). You can try to repair Office by using the appropriate built-in tool. The operating system on which your Office 365 applications are installed does not support the updated version of Microsoft Office 365. Windows 7 and Windows 8 do not support the latest Office 365 versions, and only Windows 10 supports these (Windows Server operating systems are not covered here). If multiple versions of Microsoft Office are installed, Office 365 activation issues may occur. Uninstall old versions of Microsoft Office from your computer and try to activate Microsoft Office 365 again.

Email and Synchronization Issues

Below I will list a few things that can cause update problems in Office 365. When you fill out that form, there are few things you can do to improve your chances of recovery of that account. The programs included in Office 365 can make your business’s operations and systems run smoothly. It also makes day-to-day work easier for employees so they can remain productive and deliver on their tasks more efficiently.

Office 365 Troubleshooting Issues: Common Problems and How to Solve Them

• An internet connection is not available or a firewall is blocking network connections.
• In this case, consider using safe mode, which is useful for Office 365 troubleshooting.
• At Abacus, we’ll help equip your enterprise with the most efficient tools and software so you can smoothly run your business.
• Let’s find out what you can do if updates are not installed automatically, and what factors can cause update issues.
• Not all issues are caused by bugs left unpatched by the software vendor or by third-party applications like the recent Crowdstrike incident that caused a global O365 outage.
• There you can see possible Office 365 issues, and advice on how you can resolve them.

Let our expert engineers and support staff guide you in securing and preparing your business operations. Open the required file, hit Share and then check the list of users that you can give the rights to edit a file. You can set access permissions for the entire organization or invite only the users you specify. These add-ins can cause issues such as app crashes or significant performance degradation. Microsoft recommends updating Windows, Microsoft Office and other software regularly.

You Microsoft support alternatives can unintentionally send an important Microsoft 365 item to the recycle bin, especially if you have too many files on your device’s hard drive. Still, the files you send to the recycle bin are not permanently removed. An internet connection is not available or a firewall is blocking network connections. Reboot your system and try to launch your Outlook app after to check if the synchronization issues are solved. Check POP3 and SMTP settings for connecting to Microsoft mail servers (addresses of servers, ports, encryption, authentication).

This could happen because of a delay between your initial sign in and Office 365 for business setting up your environment. To install or check for updates on your Mac, see Check for Office for Mac updates automatically. To troubleshoot Mac activation issues, see the "Activation" section in What to try if you can't install or activate Office for Mac. If you've used up your five installs and want to install Office on another computer, you have to deactivate an installation. If Office is taking a long time to install you may be on a slow connection or you another install or update may be happening in the background. See Office is taking long to install or Office hangs at 90% for possible solutions.