0xC1900101 0x30017 Error

I have had Windows 11 Insiders developer builds running on a VMware® Workstation 16 Player (16.2.4 build-20089737). Up until yesterday’s release of Windows 11 Insider Preview Build 25179, it was working.

I first started to get a download error, 0xC1900101 0x30017, in Windows Update when Build 25179 was offered. The partition had 15GB space available of a total of 64GB. I expanded the partition to 92 GB and Windows Update completed the 25179 download and started the installation.

During the reboot, I got a green screen with the Stop code: UNSUPPORTED PROCESSOR.

I have modified the registry entries, HKLM\SYSTEM\Setup\LabConfig by adding the following DWORD values:

  • BypassSecureBootCheck
  • BypassRAMCheck
  • BypassStorageCheck
  • BypassCPUCheck

And in HKLM\SYSTEM\Setup\MoSetup, I added the DWORD value AllowUpgradesWithUnsupportedTPMOrCPU

After rebooting from the green screen, the system is rolled back to Build 25174. I tried setting it up with the 25179 ISO that was released yesterday, with the same error.

August 18, 2022

I found this discussion on the VMware Workstation Tech Preview Discussions which solved the problem.

The author, Wil van Antwerpen, said VMware “Workstation cannot use VMware’s hypervisor, but instead it has to go through the Hypervisor API that Microsoft provides.” He suggested, “In order to turn off User Level mode, run the following command at the host in windows command-line with Administrator privileges” and rebooting the system.

bcdedit /set hypervisorlaunchtype off

After doing the above, Windows Update installed Windows Insider developer channel preview build 25182 successfully.