virtualbox.org

Hello,
I have installed the latest VirtualBox, but I find my client Linux is very slow even stuck sometimes.

My host OS is Win10 64, here's my physical configuration:
CPU: 12th Gen Intel i7-12700H (14 Cores)
Memory: 32GB

And I provision my client Ubuntu 22.04 as follows:
Preprocess: 2 Cores
Memory allocation: 6G
Enable PAE/NX
Enable Nested VT-x/AMD-V
Paravirtualization Interface: KVM
Hardware Virtualization: Enable Nested Paging
Video Memory: 128G
Enable 3D Acceleration

Is there any optimization on the configuration of VB?

Thanks.

Check if you have Hyper-V enabled and if you do then you have two options:
1) Use the 6.1.35 test builds. See viewtopic.php?f=6&t=106292
2) Disable Hyper-V. See viewtopic.php?f=25&t=99390


If you use WSL2 or Docker then you will need Hyper-V enabled, so you will have to use 6.1.35 test build.

Thank you for your fast reply.
Hyper-V is disabled on my host.

Talking in generalities is useless. Concrete data is needed.

Pick a VM and provide a VM log file. Make sure the VM is fully shut down, then right click it in the manager UI. Select "Show Log" and save "VBox.log" (no other file) to a zip file. Attach the zip here.

Here it is. Thank you for this checking.

These lines from the Log:
confirm that Hyper-V is still enabled on your Windows Host, so you need to follow the guide linked in AndyCot's earlier post while using VirtualBox 6.1.34.