Error adding Hyper-V role WS2019 Datacenter

[MrUSmith]

Hello, I have Windows Server 2019 Datacenter 1809 (10.0.17763.7314). An FTP server is deployed on it. All updates available until 05/23/2025 are installed.The problem is that the Hyper-V role is not added. On the last window, the installation wizard warns that the target server is missing components and the installation ends with error 0x800f081f.

What was done:
1) The sfc and DISM commands were executed. Each says that everything was completed successfully, but there is no result.
2) Specifying the WIM source in the Add Role Wizard. The result is an error.
3) The WIM source from the WS2019 image was forcibly specified for DISM. It also gives an error and says that the components were not found.

Judging by an independent study of the logs, the system is trying to search for some outdated packages for installing Hyper-V. And apparently they are not in the system, since it has been updated.I ask for help, is it possible to restore something?

 

[Windows Update Bot]

Hi @MrUSmith,

Welcome to Sysnative Forums!

If you haven't already, please review the posting instructions here, and attach the requested log files. Without log files, our helpers will not be able to assist, and this will slow down fixing your machine.

If logs have been already been provided, our team of volunteers will analyse the provided log files to build a fix for your system. Please be aware that this may take several days from your initial post, due to the high volume of threads that we receive.


- Sysnative Windows Update Team

 

[Maxstar]

Hi and welcome to Sysnative,

Export CBS (Component Based Servicing) hive

• Click on the Start button and type regedit
• When you see regedit on the list, right-click on it and select Run as administrator.
• When regedit opens, using the left pane, navigate to the following registry key and select it by clicking on it once.
  

  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing

• Once selected, click File > Export....
• Change the Save as type: to Registry Hive Files (*.*).
  
  
  
  
  
• Name this file ComponentBasedServicing (with no file extension) and save it to your Desktop.
• Right-click on the saved file and choose Send > Compressed (zipped) Folder.
• Attach the .ZIP file to your next post.
• If the file is too large to upload here, upload the file to www.wetransfer.com and post the link in your next reply.