The Windows 11 Installation Assistant is Microsoft's official free tool for upgrading a Windows 10 PC to Windows 11 in place, keeping your files, apps and settings, now that Windows 10 stopped receiving support in October 2025.

Windows 11 Installation Assistant screenshots

Windows 11 Installation Assistant interface, screenshot 1

Windows 11 Installation Assistant interface, screenshot 2

See all 2 screenshots before you download

How to Download Windows 11 Installation Assistant

1 Click the DOWNLOAD button for your preferred link (US/EU Main or Mirror). When prompted by your browser, choose "Save" and select a destination folder.
2 We recommend using the mirror links (EU MIRROR / US MIRROR) first - they tend to be faster and more reliable than external sources.
3 Having trouble downloading Windows 11 Installation Assistant? If the download doesn't start, click the link again or try a different browser (Firefox/Chrome). Some security software may block downloads due to false positives.