Double Click the executable and you will be presented with a list of options. There is no need to change any - press next twice and the compiler will install.
After installation it will ask about modifying environment variables and the default selected middle option (Modify local machine environment variables) should be selected. Click the Ok button.
You will need to reboot so the environment variables are correctly set.
At this point the Installation is complete.
On the next page Learn how to run the Watcom IDE.
