Can't install Defender - 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING

sascha_ernst_goldfish · Oct 9, 2024

Hey guys,

I have the same problem as lot´s of people here. I´m not able to install and use Defender due to an error during the installation ...
I post the CBS.log and DISM.log.

This server is our Citrix Master Imager and we need to switch from Crowdstrike to Defender ...

Could somebody help me ?

BR
Sascha

Maxstar · 2024-10-15T05:09:02-0400

Hi and welcome to Sysnative,

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:4593226

Let me know if it says it was successful or you get the message: The update KB4593226 is not installed on this computer.

sascha_ernst_goldfish · 2024-10-15T05:39:25-0400

Hi Maxstar,

your input doesn´t work ...

MfG
Sascha

Maxstar · 2024-10-15T05:41:50-0400

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.

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:

KB4593226

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.

sascha_ernst_goldfish · 2024-10-15T07:31:01-0400

here is the reply

Maxstar · 2024-10-15T07:33:51-0400

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.

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

sascha_ernst_goldfish · 2024-10-15T12:44:18-0400

Dear Maxstar,
here is the fixlog.txt, but this doesn´t help :-(
CBS logs, as requested ...

sascha_ernst_goldfish · 2024-10-15T12:45:24-0400

KB4601318, KB5043051 ???

Maxstar · 2024-10-15T12:50:37-0400

No only KB4601318, so please do the following.

Step 1. Try to uninstall the following update:

Code:

wusa /uninstall /KB:46013182

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:

KB4601318

3. Attach SearchReg.txt in your next reply.

sascha_ernst_goldfish · 2024-10-15T13:18:44-0400

here we are

Maxstar · 2024-10-15T13:29:22-0400

Here's the next fix.

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.

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

sascha_ernst_goldfish · 2024-10-15T13:45:46-0400

again :-(

Maxstar · 2024-10-15T13:48:30-0400

Next one:

Step 1. Try to uninstall the following update:

Code:

wusa /uninstall /KB:5003197

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:

KB5003197

3. Attach SearchReg.txt in your next rep

sascha_ernst_goldfish · 2024-10-15T14:01:57-0400

next one ...

Maxstar · 2024-10-15T14:27:05-0400

Here's the next fix.

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.

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

Can't install Defender - 0x80073701 - ERROR_SXS_ASSEMBLY_MISSING

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