Can't install Defender - 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING

Hi @sascha_ernst_goldfish,

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- Sysnative Windows Update Team
 
Hi,

Please do the following for SRV0049

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.
Code:
wusa /uninstall /KB:4493473
  • Let me know if it says it was successful or you get the message: The update KB4493473 is not installed on this computer.
 
Download the
577bf0efb8088-FRST.png
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.
Code:
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.
Code:
KB4493473
  • 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.
 
Start the
577bf0efb8088-FRST.png
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.
 

Attachments

Great, please try to install the Windows Defender feature. If it fails attach a new copy of the CBS logs.
 
Okay, please do the following on SRV0168.

Step 1. Try to uninstall the following update:
Code:
wusa /uninstall /KB:5003638
When you get the message: The update KB5003638 is not installed on this computer, then perform step 2.

Step 2.
1. Open a elevated command prompt and run the following command (to be sure that the COMPONENTS hive is loaded).
Code:
reg load HKLM\COMPONENTS C:\WINDOWS\SYSTEM32\CONFIG\COMPONENTS
2. Open FRST64.exe as administrator and perform a registry search for:
Code:
KB5003638
3. Attach SearchReg.txt in your next reply.
 
Last edited:
Start the
577bf0efb8088-FRST.png
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.

Afterwards try to install the Windows Defender feature and post the result. If it fails attach a new copy of the CBS logs.
 

Attachments

Great, and I will see the result tomorrow after the reboot of both servers... (y)
 

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