After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more. Note: Use these steps for Windows programs.

Make sure AutoPlay is turned On. You can also choose AutoPlay defaults for removable drives and memory cards. Alternatively, 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.

In search on the taskbar, enter Control Panel and select it from the results. Select Programs > Programs and Features. Press and hold (or right-click) on the program you want to remove and select Uninstall or Uninstall / Change. Then follow the directions on the screen. Need more help?

When you install, uninstall, or update a program on a Windows-based computer, you may receive one of the following error messages. The Windows Installer Service could not be accessed. Windows Installer Service couldn't be started. Could not start the Windows Installer service on Local Computer. Error 5: Access is denied.

Learn how to get older apps or programs to run on Windows 10 or Windows 11 by adjusting compatibility settings.

Insert the Office 2010 disc into the drive. If the setup wizard doesn't start automatically, navigate to the disc drive and click SETUP.EXE. When prompted, enter the product key. If you need help, see Find your product key for Office 2010. Read and accept the Microsoft Software License Terms, and then click Continue.

Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

For 32-bit x86-based systems: Download the x86 MSRT package now. For 64-bit x64-based systems: Download the x64 MSRT package now. The tool can be deployed in an enterprise environment to enhance existing protection and as part of a defense-in-depth strategy.

To determine which version of Windows you’re using, follow the steps in Method 1 or 2. If one method doesn’t work, try the other. Method 1: View the System window in Control Panel. Click Start, type system in the search box, and, under Control Panel, click System.

If you have Windows Vista or Windows 7, there are two methods to determine whether you are running a 32-bit or a 64-bit version. If one does not work, try the other. Method 1: View System window in Control Panel. Click Start, type system in the search box, and then click System in the Control Panel list.