When installing Revit, you can specify that service packs should be installed and applied to the software as part of the installation process.
The Service Packs option is available as follows:
Select one of the following options:
If you are working online, the installation program checks Autodesk.com to determine whether service packs are available for this software release. If so, they are listed in this section. Use this option to include those service packs in the software installation.
If a service pack has been downloaded and made available for you locally, you can specify it here to be included with the software installation.
Select this option if service packs are listed in one of the previous sections, and you do not want to include them with the software installation.