As a Tech Enthusiast, You might want to run multiple OSs(Operating Systems) in a single machine(Desktop or Laptop). Virtualbox is one of your options to achieve this. This tutorial is not for someone that is trying to install VirtualBox or run a OS in VirtualBox.

First, Always Ensure to update your OS that is running in virtualbox.

If you are unable to start or resume your OS, discard the saved state of the OS and try again.

Another solution is to delete virtualbox.ini file(you can find it in this location:C:\Users\Hp.VirtualBox). Make sure all the files/folders in thus directory(C:\Users\Hp\VirtualBox VMs) are active or you can even duplicate it. Open your virtualbox and click add(just like you want to add/launch a new OS). then navigate to C:\Users\Hp\VirtualBox VMs and select the name you used to save the OS.

The final solution option is to copy the OS folder from here C:\Users\Hp\VirtualBox VMs and paste it into another machine then launch it just like you want to add/launch a new OS(ignore all non-fatal errors/warnings). Then continue the running process.

Still facing issues, kindly send me an email at jwavolabilove16@gmail.com and let's solve it together.