/quiet, /q, qn Fully silent mode
/passive Unattended mode, shows progress bar only.
/norestart Do not restart the system after the installation
/forcerestart Restart the system after installation is complete
/log, /l Enable Logging

Example

Silently install the msi package:

msiexec /i C:\setup.msi /qn

Silently install the msi package, no reboot

msiexec /i C:\setup.msi /qn /norestart

Silently install the msi package and write the installation log to file C:\msilog.txt

msiexec /i C:\setup.msi /l*v C:\msilog.txt /qn

Silently uninstall the msi package:

msiexec /x C:\setup.msi /qn

Silently uninstall the msi package by the product code:

msiexec /x {XXXXXXXX-9215-4780-AAC6-01FD101DC931} /qn