About Windows 11 Installation Assistant
For installing Windows 11 on the device you’re currently using.
Windows 11 Installation Assistant 1.4.19041.7779
For installing Windows 11 on the device you’re currently using.
- By Microsoft Corporation
- Proprietary
- Updated Sep 29, 2026
What's new in 1.4.19041.7779
26H2.
Technical details
| Publisher | Microsoft Corporation |
|---|---|
| Version | 1.4.19041.7779 |
| Release date | 2026-09-29 |
| License | Proprietary |
| Installer type | exe |
| Architecture | x86 |
| Package ID | Microsoft.WindowsInstallationAssistant |
| Admin rights | Required |
| Install scope | All users |
Install Windows 11 Installation Assistant from the command line
- Install with Windows Package Manager
winget install --id=Microsoft.WindowsInstallationAssistant -e- Update to the latest version
winget upgrade --id=Microsoft.WindowsInstallationAssistant -e- Uninstall
winget uninstall --id=Microsoft.WindowsInstallationAssistant -e- Uninstall the MSI package
msiexec /x {115DF11E-4B4C-4EA9-9A79-00DB0C7EF02D} /quiet
Windows 11 Installation Assistant version history
1.4.19041.6448 Sep 30, 2025
1.4.19041.5003 Oct 1, 2024
1.4.19041.1610 Feb 9, 2022
Other versions
- 1.4.19041.1401
- 1.4.19041.1285
Frequently asked questions
Is Windows 11 Installation Assistant free?
Windows 11 Installation Assistant is proprietary software from Microsoft Corporation. Check the publisher's license terms for pricing and usage rights.
What is the latest version of Windows 11 Installation Assistant?
The latest version is 1.4.19041.7779, released on Sep 29, 2026.
Is it safe to download Windows 11 Installation Assistant?
The download button links to the official installer published on download.microsoft.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with a54d847bc7da71e7e291ba321c80cf6e2f0345b20e399f11670378912d0db14a.
Which Windows versions does Windows 11 Installation Assistant support?
Windows 11 Installation Assistant runs on Windows and is available for 32-bit (x86) systems.
How do I uninstall Windows 11 Installation Assistant?
Open Settings › Apps › Installed apps, find Windows 11 Installation Assistant and select Uninstall. From the command line, run winget uninstall --id=Microsoft.WindowsInstallationAssistant -e.
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