I need image help....I am an idiot

[Steviesam]

Hello gurus!

I am afraid another idiot question/help.

I have a logo, but when saved it looks like this:



But I want it to be saved as just the circular image, NOT as the square with the white corner sections.

I only have basic paint and that doesn't seem to work.

Can anyone help/advise please?

Thanks

[Steviesam]

Fooking superstars!

Thanks