But it doesn’t mean it’s impossible for some Office 365 issues to occur. The important thing here to remember is that not all problems are caused by bugs or inappropriate coding on the vendor site. The more probable option is that the Office 365 issue occurs, and can be fixed on the client-side. Check the version of Microsoft Office installed on your computer and your subscription name and expiry date. Office 365 applications installed on a computer must connect to Microsoft servers over the internet at least once every 30 days for the license to be checked and validated.

As technical support experts for 25+ years, our team has answered every support ticket imaginable from every skill level. So we compiled a short list of 5 common issues users experience in Microsoft Office 365 and how to resolve them. This article will provide quick helpful tips that will get you back up and running and eliminate searching through the endless abyss of support documentation. When you install Office 365, all the applications that came with your particular Office product is installed at the same time.

How to troubleshoot Microsoft Office?

Common questions

If problems persist, consider visiting the Microsoft Support website for further assistance or updates specific to your version of Office. If you or your users find Office is taking a very long time to install, try installing using an offline installation. See Use the Office 2016 offline installer and select the Office for business tab.

Use the NAKIVO solution to back up Microsoft 365 data in Exchange Online, Teams, OneDrive and SharePoint Online for uninterrupted workflows and zero downtime. On the bottom corner of your Outlook, ensure that Outlook is connected. If you see "Working Offline" or "Trying to Connect", Outlook cannot reach the email server.

When we are working with third-party software we might encounter some problems – it’s obvious and normal.

Use the uninstall troubleshooter to uninstall Microsoft 365, Office 2021, Office 2019, or Office 2016 from your Windows PC.

If your subscription hasn't expired, Office will reactivate the subscription the next time you log in.

See Use the Office 2016 offline installer and select the Office for business tab.

It runs multiple tests in terms of configuring and solving any potential problem.

Another possible cause is that your administrator has changed your password, without informing you about that.

The operating system on which your Office 365 applications are installed does not support the updated version of Microsoft Office 365.

As the Office 365 for business admin, you're responsible for Managing user software in Office 365.

Uninstall Office for Mac

Find solutions to common problems or get help from a support agent. If you’re lucky, you’ll find your problem covered, and SaRA will fix it for you. A window opens to ask you if you’re ready to commence repairs. With the Quick Repair radio button selected, click the Repair button near the bottom right corner of the window. Below I will list a few things that can cause update problems in Office 365.

Account or sign in issues

If Office still won't install, check that your computer meets the system requirements to install Office. For example, you can't install Office on computers running Windows XP or Windows Vista. Use the uninstall troubleshooter to uninstall Microsoft 365, Office 2021, Office 2019, or Office 2016 from your Windows PC. If a Microsoft 365 application such as Word or Excel isn't working correctly, sometimes restarting it will fix the problem.

You get a KERNEL32.dll error when trying to install Office and other system requirement issues

Only Office 365 administrators can access this tool in the Office 365 admin center. Use the Service health dashboard to find possible Office 365 issues and read the provided advice on how to fix them. 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). You may encounter issues when using any application, and Office 365 is no exception. 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.

Good practice to avoid having Office 365 issues with signing in, is to have a recovery email. There is a chance you entered the wrong username or password. 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.

Its filename is SetupProd_Offscrub.exe, so I’ve gotten in the habit of calling it "OffScrub" myself. Synchronization Office 365 issues mostly happen to Office Mobile apps. When you want to continue the work you did on the desktop, and the file is available there. Yet if this didn’t work it means that the same file you worked on another device didn’t make it to official website OneDrive as it should. It is a sign that this other device isn’t connected to the OneDrive correctly, or a simpler problem, isn’t connected to the internet.

When the process completes, the "Done repairing" window appears, as shown in Figure 6. Office installations include a built-in repair tool, and that’s the first place to turn when things go awry. The absolute worst case requires running a cleanup tool on the current Office installation, followed by a clean install of a new copy of Office.

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Pub: 21 Nov 2025 08:23 UTC

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