Hello.
The feature was dropped starting with VirtualBox 6.1. Version 6.0 and earlier. In the absence of hardware-assisted virtualization, VirtualBox adopts a standard software-based virtualization approach. This mode supports 32-bit guest OSs which run in rings 0 and 3 of the Intel ring architecture. Users of Oracle Virtualbox who haven't already spotted it may like to know that version 4.3.22 is out. It now includes Windows 10 (32 and 64 bit) in the list of Operating Systems and I believe it's had some other fixes to help with running.
When I installed the virtual machine I realize that cpu in guest (xp 32 bits) was at 100% not running nothing except start the system. After some search, I found a virtualbox thread where talk to change network from nat to bridge, I did it and now guest runs fine without executing anything.
Virtualbox 6.1 32 Bit Download
But now I'm trying to execute neverwinter nights 1 in guest and cpu uses 100% of cpu. I have all the game settings to minimal, also resolution and there is nothing in the virtual machine except that game and notepad ++.Could you help me to solve this? is it normal that a game with a emuled graphic card vga uses all cpu? could it be something related with hyperv?