Search for file across file system if nothing found above
dir /s %TEMP%\cb-installer-*.log
Additional Information
The text <VersionNumber> will vary based on the version of the installer being run (ex: cb-installer-3.5.0.1523.log, cb-installer-3.7.0.1253.log, etc.)
The precise location can typically be found by typing %temp% in the run box and pressing the Enter key
The location is usually determined by the user logged in at the time of the install attempt
The cb-installer-<VersionNumber>.log file also contains many useful details about installation of services so is worth reviewing for any install issues