Fixed: Windows Update installation error 0x80073701

When upgrading to Windows 10, some users encounter the Windows Update error 0x80073701. Microsoft is also doing its best to fix error 0x80073701. And this Techquack post will show you how to fix Windows Update 0x80073701.

With Windows 10 Update, some users complain that they encounter Windows Update error 0x80073701 and can’t install some updates. And in the next section, we will show you how to fix Windows 10 error 0x80073701. Actually, the 0x80073701 error is not a serious error. Error 0x80073701 error_sxs_assembly_missing, which means that some system files are missing, which causes Windows Update installation failure.

Windows Update problems are probably one of the most critical problems that users encounter regularly. This is because the problems are generally considered hard to solve, and the various update error codes are sometimes associated with a completely different cause and solution. In this blog post, we will look at possible solutions for error code 0x80073701, which appears next to the message ERROR_SXS_ASSEMBLY_MISSING.

Besides, there is no official solution to this problem yet, although the company has confirmed the error code. However, to familiarize yourself with this particular error code, check out the rest of this article. In addition, the error points to missing system files that led to the failed installation of the update.

According to users, they encountered an update with an error message:

Updates Failed. There were problems installing some updates, but we will try again later.

What is the cause of error 0x80073701?

What is the cause of error 0x80073701?

Unfortunately, the particular error 0x80073701 causes a number of problems, including :

  • Slow computer performance
  • Automatic shutdown
  • Unexpected system restart
  • Severe data loss
  • Multiple errors
  • BSOD (Blue Screen of Death)
  • Problems with installing Windows updates

According to Microsoft, error 0x80073701 does not cause serious system problems such as registry corruption or tampering, malware infection, software/hardware incompatibility, etc. This error code seems to be related to previous updates that have not been fully downloaded or corrupted files.

If you try to install the cumulative update a second time or more, the system may already contain some components. Therefore, error code 0x80073701 appears. Fortunately, Windows Store errors can usually be fixed manually without much difficulty.

How to fix the error 0x80073701 “Failed to install Windows updates”?

How to fix the error 0x80073701 "Failed to install Windows updates"?

Although error 0x80073701 is not a major problem, it is reported in Windows Update and marked as “Update failed”. If you encounter this problem, try these suggestions.

  1. Run the DISM tool.
  2. Run the SFC or system file checker
  3. Clean up the “Software Distribution” folder.
  4. Run Windows Update in a clean startup state
  5. Check the logs and delete the patches.

Run the DISM tool

Microsoft has released update KB4497935, which fixes this problem on Windows 10. However, if the problem persists, KB4528159 recommends running the DISM tool.

Deployment Image Maintenance and Management (DISM.exe) is a command-line tool that you can use to maintain a Windows image. You can use this utility to repair corrupted system files.

Open the extended command line and run :

Dism /Online /Cleanup-image /Startcomponentcleanup.

Restart your computer when prompted.

Run the System File Check

Run FCS to check for corrupt files in your existing system. These files are necessary for the proper functioning of Windows. SFC does a good job of replacing missing or corrupt files. You can run it from Advanced Recovery if you can’t start Windows to run this command.

Open a command prompt and run the following command.

sfc /scannow.

Restart your computer when prompted.

Clear the software distribution folder

Clear the software distribution folder. Run the command line as an administrator. In the CMD field that appears on the computer screen, enter the following text strings in sequence and press Enter.

net stop wuauserv
stop bits.

Now go to the C: WindowsSoftwareDistribution folder and delete all the files and folders it contains.

If the files are in use, reboot the unit. After rebooting, run the above commands again. By the way, your Windows Store app should be closed, so do not run it.

Now you can remove the files from the program’s distribution folder. Now, in the command line window, type the following commands in turn and press Enter :

wuauserv network start
network start bits

Reboot. If you are using Windows Update, try using Microsoft Updates or vice versa.

Start Windows Update in “Clean Boot” mode

Start in “Clean Boot” mode and run Windows Update to see if it helps. In most cases, it works.

Check the logs and remove the patches

CBS stands for component-based maintenance. CBS.log is a file that contains logs about components when they are installed or removed during an update.
If you see failed updates in the CBS logs, your best bet is to remove the fixes that were missing from the builds.

When opening the CBS logs, look for the words “ERROR_SXS_ASSEMBLY_MISSING” and see if it is related to the KB update. Uninstall and reinstall it with Windows Update.

If there are no errors, we recommend running the command :

Dism /Online /Cleanup-Image /ScanHealth.

The /ScanHealth option checks if the component’s memory is corrupted. It records this corruption in the file C:WindowsLogsCBSCBS.log, but this switch does not fix this corruption. Useful for loggers, if they exist.

Note: This post offers more suggestions when Windows Update fails to install or load.

Error 0x80073701 is not new. It has always been related to updating errors and corrupted files. The error was related to CBS logs indicating missing nodes during the installation of the service pack.

Frequently Asked Questions

  1. Go to the "Start" menu and enter the command line.
  2. Right-click on it and select Run as administrator.
  3. Copy and paste the following command, press Enter. wusa /uninstall /KB:3172605.
  4. After that, there should be no more errors.

Sometimes the best thing to do is to reboot your computer. This solution is known to fix error code 0x8024a105 and can solve all problems that occur on your computer with Windows Update. Go to "Start", click the "Shutdown" button, and restart your computer. After that, try running Windows Update again.

Make sure your computer stays connected to the Internet and is not shut down before the software has been fully downloaded and installed, as these interruptions can cause problems with the update. Despite good intentions, some updates are simply buggy and will not install no matter what you do.

  1. Reboot your computer.
  2. Fix the Windows Update service.
  3. Restart the other services.
  4. Run the Windows Update diagnostic program.
  5. Disable IPv6.
  6. Check some registry values.
  7. Run the advanced Windows Update diagnostics.