Windows 11 is available as a free upgrade for Windows 10 users, but you may still be able to activate it with a Windows 8.1 product key. Also, you will need to create a full backup in case something happens and you need to roll back or recover files for any reason. Furthermore, before installing the operating system, it’s recommended to uninstall any applications that may conflict with the upgrade to Windows 11, such as antivirus, security tools, and old third-party programs. To reduce the chances of running into issues, you should disconnect any computer hardware, including printers, phones, cameras, external hard drives, and other USB peripherals. This guide will teach you how to upgrade to Windows 11 from Windows 8.1. The upgrade is non-destructive, but you can always run into problems. As a result, creating a full backup is a good idea, which you can use to roll back if anything unexpected happens. In addition to the system backup, you should also create a backup of your files to a cloud service (such as OneDrive) or external drive if you need to restore them manually.

Upgrade to Windows 11 from Windows 8.1 from ISO

To upgrade to Windows 11 from Windows 8.1 with an ISO file, use these steps: If you want to start fresh with a clean installation of Windows 11, click the “Change what to keep” option, select the “Nothing” option, click the “Next” button, and then click the “Install” button.

Once you complete the steps, the upgrade process from Windows 8.1 to 11 will preserve your files and apps. After the installation, you won’t need to complete the out-of-box experience (OOBE) to choose your privacy settings.

The Media Creation Tool has been updated for Windows 11, but it only works to create a bootable USB flash drive or ISO file. You can no longer use it to perform an in-place upgrade, which is why we are not listing those instructions. Also, the Installation Assistant is only available for Windows 10 devices. Windows 8.1 support ended on January 10, 2023, which means that the operating system no longer receives maintenance or security updates after that day. As a result, upgrading as soon as possible is recommended to maintain the device supported and secure. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.