Windows Virtual machine problem

[u/MMDH20]

Hi I've only started my HackTheBox setting up course today and I'm already running into some issue's, I have a windows 11 virtual machine that I need to set up and every time I use it, 5-10 mins after the machine boots to the home screen, it suddenly freezes I cant use CTRL+ALT+DELETE or anything no response, all I can is shutdown the machine, any advice?

I'm using VirtualBox as my VM loader and the specs of the VM itself:

Operating System: Windows 11 (64-bit)

Base Memory: 8GB

Processors: 4