Windows Update Error 0x80070643 on Windows 10 / 11 [FIXED]

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Error Code 0x80070063 occurs when Microsoft.Net Framework 4.6.1 is installed incorrectly. This issue causes the system to display the following error message: “Windows could not start because the specified file is corrupt.” To resolve this problem, please follow the instructions below.

Step 2: Download and Run.NET Framework Repair Tool

Download.NET Framework Repair tool from here. Save it to your desktop. Double-click the downloaded file to install it. When prompted, select Yes to repair the.NET Framework.

Step 3: Restart Your Computer

After repairing the.NET Framework, restart your computer. If the above solution does not work, try one of the methods listed below.

Method #2: Remove.NET Framework 4.6.2

Run the command prompt as administrator. Type the following commands into the command prompt window. Press Enter after each command.

1. Restart Windows Update Services

If you’re having trouble getting Windows 10 updates, it might be because the update server isn’t working properly. If you restarted Windows Update Services manually and still aren’t able to download updates, try doing it automatically. You’ll find instructions here.

2. Reboot PC and Retry Update

Restarting your computer will usually fix issues caused by Windows Updates. If it doesn’t, try one of these methods.

1. Uninstall and Reinstall Windows 10

If you’re having trouble updating, you might want to uninstall and re-download Windows 10 again. You’ll lose some files during the process, but you won’t lose anything important. To do this:

a. b. Click “Uninstall a Program.”

c. Scroll down to find Microsoft Edge and select it.

d. Select “Remove” next to the program name.

3. Run Windows Update Troubleshooter

If you’re having trouble updating Windows 10, there are several things you can try to resolve it. Here are some tips to see if the problem still exists.

1. Check if Windows Updates are installed correctly

Windows Update is one of the most important features of Windows 10. If you haven’t updated Windows for a while, the installation process might fail because of missing files or corrupted data. You’ll find here a list of pending updates. Select “Check for updates now”. After the installation completes, restart your PC.

2. Remove unwanted programs

Sometimes, uninstalling applications can cause problems during the installation of Windows updates. In such cases, you can use Revo Uninstaller to scan your system and identify the culprit. Scan your computer for anything suspicious and uninstall it.

3. Disable Automatic Updating

Turn off the option “Automatically download and install updates.”

Updated: July 2024

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4. Run .NET Framework Repair Tool

Open the Microsoft.NET Framework Repair tool. If you are prompted, select Yes to repair the.NET Framework.

If you receive an error code 0x80073712, contact Microsoft Customer Support Services.

5. Reset Windows Update

Windows 10 is notorious for having problems with the update process. If you’re experiencing issues like slow performance or frequent crashes, resetting Windows Update could help. Here’s how to do it.

Step #2 – Click “View installed updates.”

Step #3 – Select the option to “Check now.”

Step #4 – Wait while Windows checks for updates. When finished, select OK.

Step #5 – Restart your computer.

This method will clean up any old files associated with previous versions of software and allow Windows to install the latest version. You’ll see the prompt again when Windows needs to check for updates.

If you’d rather just wait for Microsoft to release a patch, there are several ways to avoid the issue altogether.

6. Perform a Clean Boot

Windows 10 includes some great tools to help you troubleshoot problems. One of those tools is called Startup Repair. If you run into issues while trying to install updates, it might be helpful to perform a clean boot. A clean boot removes any start-up programs or services that could cause conflicts with Windows Update.

To do this, follow these steps:

1. Select Troubleshoot.

2. Under Reset this PC, select Troubleshoot. You’ll see options like “Clean up,” “Repair,” and “Advanced.” Choose one of these options.

3. Restart your computer.

4. When prompted, choose to log off rather than restart.

7. Install Updates via Microsoft Update Catalog

Microsoft releases monthly security patches for Windows 10. These are cumulative updates that contain fixes for vulnerabilities discovered since the previous month’s patch. In addition to fixing bugs, some of these updates include new features. If you don’t want to wait for the next patch release, you can use the Microsoft Update catalog to download and apply the latest updates.

1. Click “View Available Upgrades.” You’ll see a list of all the updates available for download. Select one, and follow the prompts.

2. When prompted, select whether you’d like to restart now or later.

3. Wait while the installation completes. Once it’s done, you’ll be able to view the status of the update.

4. Check the box beside each update listed there. Then click Apply.

8. Manually Update Windows Defender

The Windows Defender definitions update process can fail due to a number of reasons. If it does, you might see the error code 0x80070643. This happens when the installation process encounters a problem while downloading the latest definition files. You can try to download the updated definition files manually instead of waiting for the automatic update to finish.

If you still encounter problems after following the steps above, you can contact Microsoft support directly. They’ll help you troubleshoot the issue.

9. Run an Anti-Malware Scan

A virus can block Windows Update Service from working properly. If you are experiencing issues installing updates or showing Error Code 80070643, run an anti-malware scan. Malwarebytes Free is one such program that can detect and remove stubborn malware, like adware, spyware, ransomware, rootkits, etc.

10. Use either SFC Scan or DISM Tool.

Microsoft has released a security bulletin addressing several vulnerabilities in Microsoft Office products. These include Word, Excel, PowerPoint, Outlook, OneNote, Visio, Project, Access, Publisher, InfoPath, FrontPage, SharePoint Designer, and others. A remote code execution vulnerability exists in Microsoft Office 2013 Service Pack 2 and earlier versions. This could allow an attacker to take complete control of an affected computer. An elevation of privilege vulnerability exists in Microsoft Office 2016 Service Pack 1 and earlier versions. This allows attackers to bypass protected mode restrictions and execute arbitrary code within the context of SYSTEM. A denial of service vulnerability exists in Microsoft Office 2007 SP3 and earlier versions. This affects Microsoft Office 2010 and later versions. An information disclosure vulnerability exists in Microsoft Office 2003 Service Pack 3 and earlier versions. This flaw could lead to sensitive data being disclosed.

A remote code execution vulnerability exists on Microsoft Exchange Server 2013 SP1 and earlier versions. This can allow an unauthenticated, remote attacker to gain access to the network resources of a targeted organization. A remote code execution flaw exists in Microsoft Office Web Apps. This can allow an attacker to remotely compromise a vulnerable device.

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Frequently Asked Questions

Do I really need to update my operating system?

Yes! Your computer’s operating system (OS) is a key part of how you use it. It helps you organize your files, gives you faster access to programs, and keeps a record of what you’ve done on your computer. But if your OS isn’t up to date, it could be slowing down your computer or causing it to crash. So make sure you’re using the latest version of Windows 10, 8.1, 7, Vista, XP, Mac OS X El Capitan, Yosemite, Mavericks, Lion, Snow Leopard, Mountain Lion, or Panther.

How much does an update to Windows cost?

A typical update for Windows costs between $20 and $30. Here, you can find out how much each update will cost.