Microsoft released a new dedicated upgrade tool called
Windows 11 Installation Assistant 25H2 that lets you perform an in-place upgrade from Windows 10 or older Windows 11 versions directly to Windows 11 25H2 (the 2025 Update). The assistant automates the hardware compatibility check, download, and installation, preserving your files, applications, and most settings. It is available from the Microsoft Download Center and works only on x64-based PCs. Understanding the requirements and process before you start helps you avoid common pitfalls.
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