HP Pavilion 15-eh0 Boot Loops with Hyper-V enabled

[__m3e__]

Hi,

My new HP Pavilion 15-eh0032nw with AMD Ryzen 4500U APU cannot work with Hyper-V  enabled in Windows. Once the Hyper-V is enabled and the SVM/AMD-V (Virtualization extensions) is enabled in BIOS, the PC boot loops. After some digging it seems to be a common problem with HP notebooks and AMD APUs which usually can be solved via disabling the IOMMU and/or Legacy Mode Support in the Secure Boot in the BIOS/UEFI. However in my notebook there are no configuration options besides simple on/off switch for virtualization.
This happens on the Win10 20H1/20H2/21H1 and now also on the Win11 21H2 (build 22000.282). 
This is a shame that in 2021 we have a brand new PCs which cannot work with virtualization extensions with the very system they've been bundled with...

Can anyone suggest some workarounds for this issues?

[SDHank · Accepted solution]

I just posted about the solution to a similar problem with model 15z-Eh000 CTO here: 

https://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Enable-Virtual-Machine-Platform-causes-BSOD-l...

[__m3e__]

Thank you!

I knew that sometimes Realtek drivers are the cause of the problem and I've tried various version for my BT/WiFi card I could find. It didn't occur to me that the card reader is also from the Realtek...

I didn't have to reinstall windows. Update of the card reader drivers was enough to stop me from boot looping.

Thanks again! 

[SDHank]

That's great!  Glad it helped.

Good info that you only needed to install the driver.  I'd been experimenting with various drivers and changes for weeks so by that point my config was a mess.  I'll add a note on the original thread.