WUSA.exe

Windows Update Standalone Installer.

Syntax
      WUSA options

Options:
   /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
               user interaction:

               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

   /warnrestart
               When this switch is combined with the /quiet switch, Wusa.exe prompts you before it
               begins a restart for install and uninstall operations.

   /forcerestart
               When this switch is combined with the /quiet switch, Wusa.exe forcibly closes
               applications and then begins a restart.

   /?, /h, /help	  View help.

Examples:

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

“A scar does not form on the dying. A scar means I survived” ~ Chris Cleave

Related:

EXPAND - Uncompress CAB/MSU files.
DISM - Operating System Package Servicing
WUAUCLT - Windows Update Agent
%systemroot%\WindowsUpdate.log
Q934307 - Description of the Windows Update Standalone Installer.
Q824687 - Command-line switches for Microsoft software update packages.


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