I am trying to run Sandbox 2.5 in Oracle Virtual Box, once the Virtual Machine is started, it boots the OS and then it does not load environment and the host system also hangs. I have tried loading localhost in URL as well but that also doesn't seem to connect.
Can you ensure that hardware virtualization support is turned on in the BIOS settings of your host machine?
Save the BIOS settings and boot up the machine normally and as you have plenty of memory shoot it up to 10GB
See attached screenshot