If you're in a rush and just need to get Windows 98 up and running right away, win98-quickinstall is there for you. [via] "Please don't sue," writes developer Eric Voirin. "I just like old computers.

Once you're at the Windows 10 desktop, you'll need to install all of the proper drivers for VirtualBox. In the VirtualBox UI, select "Devices," then select "Insert Guest Additions CD image." ...

Next, click the Install button and allow the upgrade to proceed. When finished, your PC will reboot and allow you to log into Windows 10. Let the new operating system configure and update.