[SOLVED] Can't install Defender - 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING

Step 1. Try to uninstall the following update:
Code: 
wusa /uninstall /KB:4593226
When you get the message: The update KB******* 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: 
KB4593226
3. Attach SearchReg.txt in your next post.
 
Next fix.

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 again and post the result. If it fails attach a new copy of the CBS logs.
 

Attachments

Hey Maxstar,
this helps for the second server also. I´ve got two others ...
Is here a possiblility to learn how to read the CBS file correctly ?
If not, also ok ... Could you help me with the two others ?
BR
Sascha
 
Hi,

For CBS_0096.log, please do the following.

Step 1. Try to uninstall the following update:
Code: 
wusa /uninstall /KB:4103720
When you get the message: The update KB******* 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: 
KB4103720
3. Attach SearchReg.txt in your next post.
 
Hi,

Here's the next fix.

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 again and post the result. If it fails attach a new copy of the CBS logs.
 

Attachments

Yes, please do the following for 0097.

Step 1. Try to uninstall the following update:
Code: 
wusa /uninstall /KB:4103720
When you get the message: The update KB******* 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: 
KB4103720
3. Attach SearchReg.txt in your next post.
 
Great, even if the KB number is the same the issue could be differ on each system. But glad to hear all the servers are up and running again. (y)
I will mark this thread as solved.
 
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