Xin chào Viet Ho Van,
The error code 0x800f0838 you are seeing in the Windows Update Standalone Installer is directly caused by the new Checkpoint Cumulative Updates architecture introduced in Windows 11 24H2. When you download an update like KB5083769 manually from the Microsoft Update Catalog, the package often comes split into multiple .msu files. These files represent the prerequisite checkpoint data and the actual target update. If you attempt to run the standalone installer by simply double-clicking the target file in a clustered location like your default Downloads folder, the installation will fail. The basic graphical interface cannot automatically locate and sequence the missing checkpoint dependencies required by the servicing engine when the files are not explicitly organized together.
To resolve this issue, you must consolidate all the associated .msu files for that specific KB update into a single, dedicated local folder on your drive, such as a new empty directory on your C:\ drive. Once all the necessary files are grouped together in that isolated directory, you can bypass the standalone installer's limitations by using the Deployment Image Servicing and Management tool. You will need to open the Command Prompt with administrator privileges and run the DISM command pointed at the primary update file within your new folder using the /Add-Package parameter. The underlying Windows servicing engine will automatically detect the adjacent checkpoint files in that same directory, sequence them correctly in the background, and successfully apply the patch without throwing the dependency error.
Hope this answer brought you some useful information. If it did, please hit “accept answer”. Should you have any questions, feel free to leave a comment.
VP