Forum Discussion
Tommanir
Mar 18, 2025Iron Contributor
Windows 11 installation assistant not working. Got stuck at 0% when downloading Windows 11
Hi all, I have a modern PC with Windows 10 that fully compatible with Windows 11 system requirements. I was told that Windows 11 Installation Assistant is the right tool for upgrading from Windows 1...
- Mar 18, 2025
I wasted a couple of hours when working with Windows 11 Installation Assistant. If the problem was not fixed or you are looking for an alternative way to install Windows 11, go and try this method instead:
https://www.microonn.com/install-windows-11-with-usb-drive
First, create a bootable USB drive, boot from it and start installing Windows 11.
burnthecode
Jul 09, 2026Copper Contributor
On first attempt the windows 11 installation assistant did not work correctly. Finally figured out that the issue was with available disk space on "C" drive. I created some free space and then it worked fine (upgrade from Windows 11 22H2 to 25h2).
Before you run Windows 11 Installation Assistant ensure that you have at least 60 GB free disk space on "C" drive (or whichever drive the OS is installed on).