gpupdate:tldr:33553

The "gpupdate /?" command is used in Microsoft Windows to display information about the "gpupdate" command and its different available options. By running this command in the Command Prompt, it will provide a detailed explanation of how to use the "gpupdate" command and its syntax.

Here's an example output of the command:

Displays information about Group Policy updates and refreshes.

GPUPDATE [/Force] [/Logoff | /Boot] [/Sync]

    /Force       : Applies all policy settings, including those that have not changed.
    /Logoff      : Applies any user policies that are not "refresh only" policies.
    /Boot        : Applies any computer policies that are not "refresh only" policies.
    /Sync        : Synchronizes a Group Policy client with the domain controller.

From the output, we can see that the "/Force" option forces all policy settings to be applied, regardless of whether they have changed or not. The "/Logoff" option applies any user policies that are not "refresh only" policies, and the "/Boot" option applies any computer policies that are not "refresh only" policies.

Lastly, the "/Sync" option synchronizes a Group Policy client with the domain controller.