How to manually update ReviOS
Installing newer updates than what's already present on the install may be necessary for certain applications to function (example: FaceIt Anti-Cheat). Ideally this should be done before tweaking it, but can be done at any time, whether the install is minutes or months old, as long as it's in proper "shape". Ensure that additional components hasn't been removed from the image, other than what is present on the install, out of the box. To properly update the install you need two different types of updates, one SSU (Servicing Stack Update) and one Cumulative update. There are numerous ways to obtain these updates, and in this guide we'll be using Microsoft's official Update Catalog in conjunction with the Windows' built-in command prompt (CMD) and Microsoft's Deployment Image Servicing and Management (DISM) tool.
Please proceed at your own risk, as updating a ReviOS install may revert tweaks and cause setbacks with respect to privacy and other pre-applied features.
Head over to https://www.catalog.update.microsoft.com/Home.aspx and click on the search bar found in the top right of the website.
Now type in the (type of update), (edition of install), (version of install), (x64) in the given, respective, order. Remember you need both updates, SSU and Cumulative for the version you installed (1709, 2004, future release version).
Example: Servicing Stack Update, Windows 10, 2004, x64
Example: Cumulative Update, Windows 10, 1709, x64
Hit enter or press search. Once the searches are loaded sort by Last Updated.
Download the latest SSU and Cumulative update for your desired version.
Extra updates such as "Cumulative Update for .NET Framework 3.5 and 4.8" are not essential but can be integrated if wanted.
Once the two updates have been downloaded, open up an admin command prompt (CMD) and type in the following to extract the .cab file(s) from the .msu files:
When the SSU and Cumulative (.cab) update files are extracted, copy them to the root of the C: drive (system drive, where the Windows folder is).
Important: It's crucial to install the SSU update before the installation of the Cumulative update.
To install the SSU update, open up the admin command prompt (CMD), and type in the command below:
A reboot is required before installing the Cumulative update, either reboot normally or use the reboot command:
After the reboot continue the rest of the installation by installing the Cumulative update using the same command as before, but with the new Cumulative KB number typed in:
Once the Cumulative update has been installed, it will ask you to reboot. It's essential that you reboot before proceeding with the next step.
Now initiate the following command to clean up the update cache and complete the procedure:
You can also add the ResetBase command at the end to clean up superseded update components.
The progress bar may end up hanging, you can "wake" it up by pressing one of the arrow keys.