Server 2022 boot loops after Hyper-V role installation

New Contributor

After enabling the Hyper-V role on Windows Server 2022 on a Intel NUC6CAYH with Celeron Processor J3455 the unit goes in a bootloop (recovery). This unit previously had Windows Server 2019 installed and before that even Windows Server 2016 and both worked without issues with Hyper-V role installed

 

When using the en-us_windows_server_2022_x64_dvd_620d7eac.iso (RTM release) iso I am able to install Hyper-V role, but when installing any cumulative updates afterwards it goes into this boot loop as described above, only solution is to start in safe mode and the Hyper-V role installation is rolled back. (or in revovery set hypervisorlaunchtype=off)

 

I have found out this seem to be related/similar to be able to enable the Core isolation toggle (which is partly based on virtualization as well) on NUC6CAYH (Apollolake)

 

Steps i tried:

 

10.0.20348.169 (RTM) (Clean install)

Install Hyper-V Role Successful
Core isolation toggle Successful

 

10.0.20348.230 (September ISO) (Clean install)

Install Hyper-V Role Unsuccessful
Core isolation toggle Unsuccessful

 

 -----------------------------------------------------------------------------------------------

 

10.0.20348.169 (RTM) (Clean install)

Install Hyper-V Role Successful
Core isolation toggle Successful

 

10.0.20348.230 (KB5005575) (Update)

We couldn't complete the updates
Undoing changes
Don't turn off you computer

 

As far as i read the processor meets the minimum requirements, eg:

 

 

 

1,4 GHz 64-bit processor
Compatible with x64 instruction set
Supports NX and DEP
Supports CMPXCHG16b, LAHF/SAHF, and PrefetchW
Supports Second Level Address Translation (EPT or NPT)

 

 

 

CoreInfo excerpt

 

 

 

 Intel(R) Celeron(R) CPU J3455 @ 1.50GHz
 Intel64 Family 6 Model 92 Stepping 9, GenuineIntel
 Microcode signature: 00000046
 VMX           *    Supports Intel hardware-assisted virtualization
 X64           *    Supports 64-bit mode
 NX            *    Supports no-execute page protection
 CX16          *    Supports CMPXCHG16B instruction
 LAHF-SAHF     *    Supports LAHF/SAHF instructions in 64-bit mode
 PREFETCHW     *    Supports PREFETCHW instruction

 

 

 

CoreInfo -V excerpt

 

 

 

 Intel(R) Celeron(R) CPU J3455 @ 1.50GHz
 Intel64 Family 6 Model 92 Stepping 9, GenuineIntel
 Microcode signature: 00000046
 VMX           *    Supports Intel hardware-assisted virtualization
 EPT           *    Supports Intel extended page tables (SLAT)

 

 

 

 

Anyone can explain why this works fine on RTM, but won't work after installing any cumulative updates as that makes no sense to me?

 

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