Unable to install Java

[LittlePandaElly]

This keeps popping up every time:

Unable to install Java

There are errors in the following switches:

"C:\Users\Name\Downloads\forge-1.18.1-39.0.66-installer(2);jar";.

Check that the commands are valid and try again.

[MFMods]

question 1: what game version do you wish to  play?  (correct answers are "1.16", "1.18" and "i'm a confused sheep")

question 2: open command prompt (win+r, type cmd, hit enter), type a command "java -version" (without quotes). what's the output?

question 3: do you know what to do with jar files? (incorrect answers are anything that involves double clicking in windows explorer and yelling)

do not install forge just yet - first you need to install java and the two supported game versions require very different java versions, so don't jump ahead.