The Active Setup Log.txt file can help you troubleshoot Setup errors and the status of Setup when the error occurred. You can find the following entries in the log:
0 - Initializing (making a temporary folder, checking disk space).
1 - Dependency (checking for all dependencies).
2 - Downloading (server is downloading files).
3 - Copying (files are being copied from download folder to temporary install folder).
4 - Retrying (Setup is restarting download because of a timeout error or other download error).
5 - Checking trust (checking permissions).
6 - Extracting files.
7 - Running Setup program (an .inf or .exe file).
8 - Finished (installation is finished).
9 - Download finished (files have finished downloading).
Some common error codes:
80100003 - Files are missing from the download folder during installation.
800bxxxx - An error code starting with 800b is a trust failure.
800Cxxxx An error code starting with 800C is a urlmon failure.
Some common examples are:
800C005 - File or server not found.
800C00B - The connection timed out.
8004004 - The user canceled Setup.