Linux Mint problem with USB booting

[Lumaja]

Booting with Live USB LM 20.04.1 it shows the normal screen on clicking on any icon nothing happens.
How to fix this problem
Thank you

[RIH]

There is no such thing as Mint 20.04..
There is Mint 20.1 & Ubuntu 20.04..

Can you open a terminal by pressing Ctrl + Alt + t ?
If so, do commands work in there??

If you press the Super Key (Windows key. if you prefer) does the Menu open??

[Lumaja]

You right my mistake it is Mint 20.1.
Can you open a terminal by pressing Ctrl + Alt + t ? NO

If you press the Super Key (Windows key. if you prefer) does the Menu open??
YES but is very unstable and can’t open nothing.
The other icons don't open.

[mikeflan]

Did you check the checksum of the iso you downloaded?
If not, I suggest you rebuild the live boot from another iso file.

[linux-rox]

Is this a new cutting edge computer or one a little older, say at least a year old. If very new, you might need the Edge ISO.

[Lumaja]

I did checksum of the iso.
This computer is 3 years old and been working with Ubuntu 16.04.

[RIH]

Does the computer function normally from the live disk?
If so then my advice would be to re-install, as there is something obviously wrong with the current installation..

[linux-rox]

No need for Edge on a three year old computer (or even one year old). If the ISO is sound, next suspect is the flash drive. What app did you use to burn the ISO to flash drive? Etcher and Rufus seems to be the most reliable. Do you have another flash drive available? If not, maybe get one.