Changes through OpenOffice on the laptop?

I have downloaded the OpenOffice program and if I want to start it comes the notification if I want to make changes to my laptop?

If I press no, the program does not open what awaits me if I press yes?

Can someone help me there?

And please no stupid comments.

This is a Windows security query.

If you have downloaded OpenOffice from a trusted source, you can safely click "yes".

This is a standard Windows message.

If you want to install any program, no matter what, you will be asked "do you want to make changes to the computer".

If you want to install the program, you have to click on "yes".

If you do not want to install it, click on "no" and everything will stay as it is.

You have to agree to the change. The program is written to the file.

What awaits me when I press yes?

your computer installs the program and you can run it