WUSA.exe – Windows CMD Command
Windows Update Standalone Installer.
The executable file wusa.exe is used to install update packages on Windows 10 and previous iterations. Only update packages with .msu extension can be installed using the Windows Update Standalone Installer, a Microsoft Windows component. These updates are “standalone” because Windows Update did not supply them.
/extract Extract the package contents to a destination folder.
This option was removed from Windows 10 due to a security issue, privilege elevation
would allow executables to be extracted to C:\windows\system32 [x].
/kb uninstall a package led by using its KB number. Use only together with /uninstall.
/quiet Run Wusa.exe in quiet mode without user interaction. When the tool runs in quiet mode,
it runs without user interaction. The computer restarts if this is required.
For example, if the Windows6.0-KB934307-x86.msu file is in the D:\934307 folder,
type the following command at a command prompt to install the update package without
wusa.exe d:\934307\Windows6.0-KB934307-x86.msu /quiet
When you use this switch, the Microsoft Software License Terms do not appear.
/norestart Prevent Wusa.exe from restarting the computer.
The /norestart switch is ignored if the /quiet switch is not present.
If you run Wusa.exe together with these two switches, you must manually restart the
operating system after the installation is complete (if the installation requires a restart)
For example, if the Windows6.0-KB934307-x86.msu file is in the D:\934307 folder, type
the following command to install the update package:
wusa.exe D:\934307\Windows6.0-KB934307-x86.msu /quiet /norestart
When this switch is combined with the /quiet switch, Wusa.exe prompts you before it
begins a restart for install and uninstall operations.
When this switch is combined with the /quiet switch, Wusa.exe forcibly closes
applications and then begins a restart.
/?, /h, /help View help.
C:\> WUSA d:\934307\Windows6.0-KB934307-x86.msu /quiet
C:\> WUSA D:\934307\Windows6.0-KB934307-x86.msu /quiet /norestart
C:\> WUSA /uninstall /kb:934307 /quiet /norestart