[SOLVED] Windows 10 v21H2 Error 0x800700c1 in Windows Update, SFC cannot repair corruption, DISM error 193 %1 is not a valid Win32 application

[cicomp]

We cannot install any Windows updates. When looking at previously installed updates, it lists Feature update 22H2 installed three separate times but when looking at WinVer it states the system is running 21H2. Updates attempts to install but ends with the error 0x800700c1. SFC scan has been run several times and always has detections that it cannot repair. DISM errors out at 20% stating error 193 %1 is not a valid Win32 application. We've also attempted to re-register windows update components dll's, but it didn't help. I've attached the CBS and ComponentScanner logs. Any help is greatly appreciated.

 

[Windows Update Bot]

Hi @cicomp,

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,

Step 1. Download

SFCFix and save it to your desktop.

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

• Save any work you have open, and close all programs.
• Download the attachment SFCFix.zip and save it to your desktop.
• Drag the SFCFix.zip file over the SFCFix.exe executable and release it.

• SFCFix will launch, let it complete.
• Once done, a file will appear on your desktop, called SFCFix.txt.
• Post the logfile (SFCFix.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

 

[cicomp]

Thank you for all your help! After running the DISM command, I got the following:

------------------------------------------------------------------------------
Deployment Image Servicing and Management tool
Version: 10.0.19041.844

Image Version: 10.0.19044.1706

[==========================100.0%==========================]
Error: 0x800f081f

The source files could not be found.
Use the "Source" option to specify the location of the files that are required to restore the feature. For more information on specifying a source location, see Configure a Windows Repair Source.

The DISM log file can be found at C:\WINDOWS\Logs\DISM\dism.log
--------------------------------------------------------------------------------



I've attached the SFCFix log as well as a new CBS log. Please let me know the next course of action.

 

[Maxstar]

Here's the next fix.

Step 1.
Warning: This fix was written specifically for this system. Do not run this fix on another system.

• Save any work you have open, and close all programs.
• Download the attachment SFCFix.zip and save it to your desktop.
• Drag the SFCFix.zip file over the SFCFix.exe executable and release it.

• SFCFix will launch, let it complete.
• Once done, a file will appear on your desktop, called SFCFix.txt.
• Post the logfile (SFCFix.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

 

[cicomp]

I've run the next fix and the DISM gave the same error. I've attached new log files. Thanks for all your efforts!

 

[Maxstar]

Hi,

Step 1.
Warning: This fix was written specifically for this system. Do not run this fix on another system.

• Save any work you have open, and close all programs.
• Download the attachment SFCFix.zip and save it to your desktop.
• Drag the SFCFix.zip file over the SFCFix.exe executable and release it.

• SFCFix will launch, let it complete.
• Once done, a file will appear on your desktop, called SFCFix.txt.
• Post the logfile (SFCFix.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

 

[cicomp]

That's amazing what you're able to do! That last fix seems to have worked and the DISM command finished successfully. I've ran Windows update and it was able to install several updates. I attached the SFCFix log. Thanks a ton!

 

[Maxstar]

Hi,

You're welcome. Glad to hear the issue has been resolved...