Microsoft releases Windows 11 Installation Assistant 25H2 as Windows 11 25H2 becomes the main version for most PCs.

If you are installing, updating, or upgrading to Windows 11 using the Installation Assistant but the Windows 11 Installation Assistant is slow, use the following suggestions to resolve the problem.

If Windows 11 Installation Assistant is not opening, follow the solutions and workarounds mentioned below to resolve your issue. Run the assistant as administrator Disable Antivirus software Run ...