Install Office. Select the Microsoft 365 folder from the virtual drive and then double-click either the Setup32.exe to install the 32-bit version of Microsoft 365, or Setup64.exe to install the 64-bit version to begin the offline installation. If you're not sure which version is right for you, see Choose the 64-bit or 32-bit version of Office.

The Windows Help program is not supported in Windows 10, Windows Server 2012 or later versions of Windows Server. The Windows Help program is available for Windows Vista, 7, 8 and 8.1 only. Microsoft strongly recommends that software developers discontinue using the Windows Help application.

Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.

If installation doesn't start automatically, browse the disc to find the program setup file, usually called Setup.exe or Install.exe. Open the file to start installation. Insert the disc into your PC, and then follow the instructions on your screen.

They’re launched using an .EXE or .DLL file, and they typically run on your device unlike web-based apps (which run in the cloud). You can also find desktop apps in Microsoft Store. Learn more about which privacy settings apps can use, and how to control that access.

Plug-ins or add-ons add functionality—such as audio effects or DVD capability—to Windows Media Player. You can download plug-ins or add-ons for your version of the Player using the links below.

Select the steps for the version of Office you want to install or reinstall. Close the uninstall tool. Microsoft 365 | Office 2021 | Office 2019 | Office 2016. If Office still won't install, check that your computer meets the system requirements to install Office.

If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer. The steps to access the repair tool vary depending on your operating system.

If Office activation fails, you'll see Unlicensed Product or Non-commercial use / Unlicensed Product in the title bar of your Office apps, and most features of Office are disabled. To restore all features of Office, you'll need to fix the problem that's causing activation to fail.

All startup methods essentially do the same thing: they run the app's .exe file, even if you don't actually type the command or even see it. A command-line switch is a modifier that is added to the .exe file.