The Windows 11 Installation Assistant is the recommended tool to upgrade your current PC running Windows 10 (version 2004 or higher) to Windows 11. It downloads and installs Windows 11 while preserving your files, settings, and apps.

How to use Windows 11 Installation Assistant:

• Go to the Microsoft official website and download the Windows 11 Installation Assistant tool.
• Launch the tool by double-clicking the downloaded executable file.
• Accept the license terms and click "Accept and install" to start the upgrade process.
• The tool will check your device’s compatibility, download Windows 11, and install it.
• When prompted, click "Restart now" to complete the installation.
• The computer will restart a few times during installation. Keep the power connected and do not turn off the PC.
• After the process completes, you will reach the Windows 11 desktop, indicating installation is finished.

Important Notes:

• Your PC must meet Windows 11 hardware requirements and have enough free space (at least 9 GB).
• The Installation Assistant works on PCs with x64 processors but not on ARM-based devices.
• Backing up important data before upgrading is recommended.
• The upgrade process typically takes less than an hour but depends on device performance and internet speed.

This method is suitable for upgrading directly from Windows 10 or an older Windows 11 version to the latest Windows 11 version (such as 25H2, the 2025 update) without losing personal files and applications.