This article shows you how to find the log generated when you install CDM V3 Beta.

Instructions to Get Installation Logs

In %localappdata%\temp , sort by date and you will see a file looking like MSI123L5.tmp

1. Press Win+R

2. Paste %localappdata%\temp into box 

3. Press enter

%localappdata% is an environment variable. When you perform the tasks above you will see it resolves to the location that is under your user profile.