Windows 11 Insider Preview 10.0.26052.1100 (ge_release) Install error - 0xc1900101

I had this same problem (Install error - 0xc1900101).

I went to and created the ISO for the 26052.1 update. When I mounted and ran it I chose its default settings (to stay connected to the internet and save all my files, apps and settings). It crashed and rolled-back just as before.

So, I had made two changes to the desktop box since the last successful update: added an SSD drive with Ubuntu-Linux and replaced a USB-Wifi adapter with a newer USB-Wifi adapter. So I removed the SSD (leaving the two NVME's, one with Fedora-Linux) and removed the USB-Wifi adapter.

Then I ran the Systemd Configuration utility and disabled all non-Microsoft services and disabled all Startup apps. And I also ran the Device Manager and uninstalled and removed the AMD Vega graphics driver so that only the Microsoft graphics driver was installed (I had issues with the AMD driver once before).

In order to gaurantee that the AMD Vega driver does not reinstall during the update you must either "roll back" the driver in the Device Manager (not just uninstall it), or disable automatic driver updates.

Then I rebooted, mounted the ISO and ran it. In its setup I chose no internet updates (the was no adapter) and to REMOVE all my apps and settings. But I kept all my files. This worked. The update was successful.

I don't know which change fixed it. I'm guessing it was letting the ISO remove all my settings and apps. I have installed the AND graphics driver and connected the newer USB-Wifi adapter with no problems. I connected to the internet and ran Windows Update and it updated from 26052.1 to the current update 26063.1. Everything is working.