An error message in windows installer

Hi, I am a new computer user. I want to install software on my computer but I can't.
Always show this error message on screen.
The installer has encountered an unexpected error installing this package.
This may indicate a problem with this package. This error code is 2738.
I don't understand it. So i need help to solve this problem.
I know that this site is very good for solving any problem about computer and other problems.
Please help me.
Thank you.

