Fix Windows Update Error 0x800704c7

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The 0x800704c7 error is a common problem that can be caused by various reasons such as missing or damaged files and program conflicts. The 0x800704c7 error is usually associated with Windows Update, but it can occur at any time and interrupt any activity you might be doing.

This error is known to occur on Windows 7/8 / 8.1 & 10 based systems and can occur in many different ways depending on the situation. As we all know, common activities such as web browsing cause the 0x800704c7 error.

Some people have also reported that when backing up Windows files, running Windows Update and accessing Microsoft OneDrive, the 0x800704c7 error code occurs. This is an issue that many computer users are familiar with. Here is a more detailed explanation of the reasons for the “0x800704c7” error in Windows Update.

Check your system for missing or damaged system files

sfc for corrupted DLL

With the System File Checker Tool (SFC), Windows users can check their system for missing or corrupted system files. This utility on your Windows device can replace missing files and repair damaged files, resulting in a more efficient system. To operate this tool, follow the steps below:

Step 1: Go to Start and type Command Prompt or CMD.
Step 2: Go to Start: Login as Administrator
Step 3: Enter sfc /scannow. (Be sure to place a space between “sfc” and “/scannow”).

After performing these procedures, check to see if the error code has been corrected. Go to Settings > Update and Security > Windows Update. Update your Windows operating system. If the 0x800704c7 error code occurs again, you will need to try the following method described below.

January 2021 Update:

We now recommend using this tool for your error. Additionally, this tool fixes common computer errors, protects you against file loss, malware, hardware failures and optimizes your PC for maximum performance. You can fix your PC problems quickly and prevent others from happening with this software:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


Perform a system restore

system restore1
  • Press the power button until your PC turns off, then press it again to turn it on.
  • Navigate to the “Run in Safe Mode” option and press the “Enter” key.
  • Go to Start > Enter System Restore, then press Enter.
  • Follow the prompts to return to a specific restore point.
  • Wait until the process is complete, then restart.

Select this option only as a last resort, as it will delete your personal data on the PC.

Disable your antivirus program


Third-party antivirus programs are good, and they take advantage of them, but they also have some drawbacks. The most important would be that they interfere with your system to the point where they can stop or prevent everything. Because of this interference, you may be asked for error code 0x800704c7. Before going any further, therefore, make sure that you have disabled the third-party antivirus program. In addition, restart and try to run the update after your antivirus program has been disabled.

Download the latest KB version

You can also try to download the most recent KB you tried to install on your system from the Microsoft Update Catalog. Learn how to do this here :

  • Press Winkey + I to open the settings.
  • Go to the “Update and Security” section.
  • In the central area you will see “View Update History”. Click on it.
  • There you will find the most recent KB, which is usually at the top. Copy the KB code.
  • Go to the Microsoft Update site and look for the KB code.
  • Download it for your particular Windows.
  • When the download is complete, open it and install it.

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