i need help. with linux in virtualbox.

soo this is my first time and i saw some tutorials and i already contacted a guy about the problem but he doesnt know what to do.
i already treied the 2021.1 live.iso 64bit and the 2020.2 installer 64bit it happends the same. when the download is compleat it appear a black scren with an underline i tought that was weird so i went to the storage and the image disapeard and i put it again and i downloaded again and it happened again so i downloaded the 2020.2 installer 64 bit and i tried and it happened the same so i am kinda sad cuz i tried very much and it stil dont work. i already have windows 7 windows xp and metasploitable and this never happend to me.can u help me pls?:) i am using oracle VM Virtual Box in a windows 10 pc.

You could try the OVA file that is built for Virtualbox. All you have to do is click on it to load it and you're ready to go.