How to fix error 0x80070643 when updating Windows: 6 solutions that will help you

Have you seen a Windows error when updating it and you don't know how to fix it? In this article we are going to teach you specifically how to how to fix error 0x80070643 when updating Windows. And Windows often gives us different errors and most of them usually come after operating system updates (unfortunately). It is not something we can fight against since updating the operating system is essential to keep it in good condition and optimally, but we can have tools to solve these errors.

One of the most common errors after those updates it is the error 0x80070643 and in this case if you are not very interested in this type of errors or you do not read Tecnobits, it may make you frustrated or desperate, but don't worry, you're already here. In this article we are going to try to help you in different ways, but first we will go into a brief explanation of error 0x80070643 so that you can try to understand why it occurs. After that we will go with the possible solutions.

What is error 0x80070643 and why does it occur?

 

To know how to solve error 0x80070643 when updating Windows, you have to understand the error, what and why, although in the Most cases are due to an update of the system itself (not to say in all of them). Error 0x80070643 may appear during the installation of Windows updates, but also during other types of updates or installations such as those of Microsoft Office or when installing any third-party software that uses the Windows update installation support or mechanism.

Error 0x80070643 is usually related to different permissions problems, or also with damaged files, also due to conflicts in the security software (Windows firewall) or directly a problem that is related to the components that install the Windows update itself. As you can see, in most cases it is based on an update or installation but finding the root of error 0x80070643 can be complicated, the point is to try to have the knowledge and tools to repair it.

We are going to try to give you a schematic summary of its causes, trying to explain them a little more than what we have told you in these paragraphs:

1. Corrupt or damaged system files: As a general rule, these files do not allow the updates to go to the end and complete with errors.
2. Windows Update failures: If the Windows Update components become corrupted, they will cause update failures, as is logical.
3. Antivirus, Firewall, security software In general: in many cases security software also known as antivirus causes problems and interferes with different processes that they do not detect as belonging to the system.
4. System permissionsa: You may have already had to open a program more than once with administrator permissions, well, these tasks may need those permissions to be completed.
5. Conflicts with previous versions of the system: This happens very often. Having a previous version installed may cause conflicts with the current one and prevent the new one from being installed.

Now you know the causes of why it occurs, but let's go ahead with how to solve error 0x80070643 when updating Windows. That's why we are going to try to give you a few solutions so you can know how to solve error 0x80070643 when updating Windows.

Solutions for error 0x80070643 when updating Windows

We are going to gradually break down the solutions for the error 0x80070643 when updating Windows. Some are simple, others more complex but nothing complicated for an average Windows user.

Restart your pc

It may seem silly but sometimes a simple PC restart fixes everything. And you will always wonder why, but it is as simple as a restart closing processes, both in the foreground and in the background, and some of those processes may be blocking the Wondows update.

Windows Update Troubleshooter

The latest versions of Windows (10 and 11) include with them a windows update troubleshooter (We assume that in view of so many errors, Microsoft has tried to provide an extra tool). This solver usually detects the errors and fixes them on its own or tries to give you a recommendation to correct them. Here's how to access this Windows troubleshooter to give you recommendations on how to solve error 0x80070643 when updating Windows:

• Windows 10: To access the troubleshooter in Windows 10 you will have to go to "Settings > Update and security > Troubleshoot > Windows Update"
• Windows 11: In Windows 11 you will have to go to » Settings > System > Troubleshoot > Other troubleshooters > Windows Update»

Now you will just have to follow their instructions.

Disable antivirus

As we told you, the error can occur because the antivirus is interfering with the installation. Try to disable it and after that try to install the update again. For your security, we recommend that you activate it again after completing the installation.

Update Microsoft .NET Framework

Error 0x80070643 when updating Windows may be related to Microsoft .NET Framework. We have to try to have the latest version installed:

1. Go to the official Microsoft website and download the latest version of the .NET Framework
2. Install and restart
3. Try installing the update again

Reset Windows Update components

This is one of the most complex for nothing you can't do by following this article on how to fix error 0x80070643 when updating Windows:

1. Open Command Prompt as administrator (CMD)
2. You will have to write the following one by one in the command window and press the Enter key after each one: "net stop wuauserv", "net stop cryptSvc", "net stop bits", "net stop msiserver"
3. Next you will have to rename the »SoftwareDistribution» and «Catroot» folders like this: ren C:\Windows\software distribution software distribution.old – ren C:\Windows\System32\catroot2 Catroot2.old
4. Restart what we stopped previously: "net start wuauserv» «net start cryptSvc» «net start bits» «net start msiserver»
5. Now try updating the operating system again.

Uninstall and restart the update

If you've come this far and you still don't know how to fix error 0x80070643 when updating Windows, let's uninstall it completely and update it again:

1. Go to “Settings > Update and Security > Update history
2. Select Uninstall updates
3. Choose the update and uninstall
4. Restart and run Windows Update again to update.

We hope that at this point you already know how to solve error 0x80070643 when updating Windows and it has been completely resolved. Remember that You can follow these same steps for almost any Windows update error. Keeping the system updated is important.

If you have not been able to fix it, we leave you the Windows community page in which you can ask about your specific case so that people from Windows or the community can help you. We also leave you another article about how to resolve error 0xc0000005 in Windows.