Windows Server 2019 Defender ASSEMBLY_MISSING

[MuayThai]

Dear Community,


I have an error trying to install the Windows Defender Feature (Defender AntiVirus) on a Windows 2019 Server

The error is 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING


Rebooted several times..

Attached you can find the cbs log file

Could you please help me out?

Thank you in advance

 

[Windows Update Bot]

Hi @MuayThai,

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,

Download

ComponentsScanner and save it to your desktop.

• Right-click ComponentsScanner.exe and select "Run as administrator", click Yes on the UAC (User Account Control) prompt which appears.
• Follow the on-screen instructions.
• Once complete, a report will be saved to your desktop called ComponentsScanner.txt.
• Post the logfile ComponentsScanner.txt as attachment into your next reply.

 

[MuayThai]

Hi Maxstar

Attached you can find the result of ComponentsScanner.txt

 

[Maxstar]

Hi,

Upload your COMPONENTS hive.

• Navigate to C:\Windows\System32\Config and locate the COMPONENTS file.
• Please copy this file to your desktop.
• Note: If you receive an error that this file is in-use, simply reboot your computer and try again.
• Right-click on this file on your desktop and select Send To > Compressed (zipped) folder. This will create a file named COMPONENTS.ZIP on your desktop.
• If the file is too large to upload here, upload the file to www.wetransfer.com and post the link in your next reply.

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.

 

[MuayThai]

Thank you for the guidance Maxstar.

Attached you can find the requested files

 

[Maxstar]

Please do the following:

Follow these instructions to remove an update.

• Open the Start menu of Windows and type the command CMD
• When you see Command Prompt on the list, right-click on it and select Run as administrator.
• When command prompt opens, copy and paste the following command into it, then press enter.

wusa /uninstall /KB:5034768

• Let me know if it says it was successful or you get the message: The update KB5034768 is not installed on this computer.

 

[MuayThai]

yes it says the update KB5034768 is not installed on this computer

 

[Maxstar]

Download the

Farbar Recovery Scan Tool and save it to your Desktop:

Download the 64 bit version: - Farbar Recovery Scan Tool Link

• Open the startmenu and type the command cmd.
• After you find the Command Prompt, right click on it and select Run as Administrator.
• Copy and paste the following into the Command Prompt and press enter.

reg load HKLM\COMPONENTS C:\WINDOWS\SYSTEM32\CONFIG\COMPONENTS

Right-click on the file FRST64.exe and choose Run as administrator.

• Copy and paste the following (code) into the Search box and click the Search Registry button.

KB5034768

• When the scan is complete, a message will display that SearchReg.txt is saved in the same folder FRST was started from.
• Post the logfile SearchReg.txt as attachment in your next reply.

 

[MuayThai]

Attached you can find SearchReg file

 

[Maxstar]

Step 1. Start the

Farbar Recovery Scan Tool again.

Warning: This script was written specifically for this system. Do not run this script on another system.

• Download the attachment fixlist.txt and save it to your desktop.
• Right-click on FRST.exe and select "Run as administrator".
• Press the Fix button.
• If for some reason the tool needs a restart, please make sure you let the system restart normally.
• When finished, a log called Fixlog.txt will appear in the same directory the tool is run from.
• Post the logfile Fixlog.txt as attachment in your next reply.

Step 2. Run the following DISM command and post the result. If it fails attach a new copy of the CBS log.

DISM /online /cleanup-image /RestoreHealth