Installation media, such as a USB flash drive, can be used to install a new copy of Windows, perform a clean installation of Windows, or reinstall Windows. To create installation media, go to the software …

See some of the most common upgrade and installation errors for Windows 10 and Windows 11, and what you can do to try to fix them.

The installation media for Windows is a versatile tool that serves multiple purposes, including in-place installations for recovery and new installations. This media, typically created on a USB drive or DVD, …

Feb 4, 2025 · Installation media is normally used to install Windows 11 on a device that doesn't already have Windows installed on it. However, it can also be used to upgrade existing installations of …

Installation or sign in issues? Tip: For help with Microsoft 365 or Office installation issues on a PC, please go to Microsoft 365 troubleshooters and select the Microsoft 365 setup troubleshooter option.

Get help with Windows 11 installation problems If you see an error while upgrading or installing Windows 11, don’t worry—most problems can be fixed with a few simple steps.

Learn how to fix "Another installation in process" error when trying to install Office or Microsoft 365.

The October 28, 2025 update for Windows 11, version 25H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8.1. We recommend that you apply this update as part …

In the Fix problems using Windows Update window, choose if you want to allow the PC to automatically restart 15 minutes after the installation completes. Select OK when you’re ready to start the installation.

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.