– User Not logged in as Admin.
– Not enough disk space
– Anti-Virus is running
– Windows 9x missing DCOM package
– Dependent DLLs are missing.
1. Setup Error 168 – “Setup has encountered a problem updating your system registry Insufficient Privileges”
2. Need at-least 30 MB of space on system drive
3. Many anti-virus and disk security software applications run memory resident programs that can interfere with the installation of other software. Before installing MDAC, temporarily disable any anti-virus and disk security software