The following error message terminated the installation of Autocad Mechanical 2012. How do I correct this?
....
Extracting x64\Acadm\Program Files\Autodesk\Root\Locked\acad.exe
CRC failed in x64\Acadm\Program Files\Autodesk\Root\Locked\acad.exe
Unexpected end of archive
Dennis Dupps
duppsd@ih.k12.oh.us