Uninstall VMWare Workstation 14 Player and all VMs

I can't get VMWare Workstation 14 Player to run on my Windows 10 PC - it crashes with [msg.log.error.unrecoverable] VMware Player unrecoverable error: (vthread-8)

I've decided that VMWare doesn't suit my purposes and want to completely remove it. However, that means I need to remove all virtual machines too (there's only one: Ubuntu). How do I remove the virtual machines without starting Player? (Don't worry about my losing data - it's never been stable enough for me to generate anything worth keeping).

Thanks in advance,

Tim