Step One:

Save the file to a location of your choice

Open the file from where you saved it and on the pop up window click "Run"

Step Two:

This is an installation if you plan to use TeamViewer more than once

Step Three:
Regular Installation
One Time Use Installation
OR

This is an installation if you plan to use TeamViewer only once

Select "Basic installation" and "Personal" then you can click "Accept - finish"

Select "Run only" and "Personal" then you can click "Accept - finish", please continue to step five

Step Four:

Allow 2-3 minutes for installation, once completed the window will automatically close

Step Five:

Once installation is completed you may see a pop-up window, you can close that

Step Six:

On the next screen you can see "Your ID" and "Password", please give these numbers to the rep and wait for the program to connect

Step Seven:

Once the remote connection is complete you may see another window open, you may close that