While installation of any program or any specific application, we may sometimes come across an error. This error says 0x80070643. There are complaints from many users that due to this error, the installation process remains incomplete.

So in this article, we will discuss the error code 0x80070643, which interferes with installing the applications or the programs. This error is usually seen popping up on the screen during the time when Windows updates the applications.

0X80070643

However, this particular error 0x80070643 does not restrict the Windows update process, but it does interfere with the installation process. Therefore the applications or the programs are unable to be installed properly.

The main cause for the error code 0x80070643 is the presence of some files of the previous anti-virus program on the user’s system, which should have been deleted. Not only one, but there can be more than one cause for the occurrence of the error code 0x80070643.

We have derived some solutions to the error code 0x80070643, and we are pretty sure that one among any of the mentioned solutions will surely help the user to get rid of the error code 0x80070643

How to Fix Windows Update Error Code 0X80070643 in Windows 10

So we have got a basic idea about the Windows Update Error Code 0x80070643 and the causes of this issue. So here are the solutions to the Windows Update Error Code 0x80070643. These solutions have been written after considering every possible situation that the user might face.

So in case, the reader is unable to find the solution to the Windows Update Error Code 0x80070643 in the first instance, do not lose hope because there are many others to try out.

So let us begin with the solutions of Windows Update Error Code 0x80070643.

Method 1: Restart Your Computer

The very first step to fix the Windows Update Error Code 0x80070643 is the perform the restarting of the device that will be used by the user. This step for solving the Windows Update Error Code 0x80070643 is the easiest and solution that can be performed. Often the solution to a problem, especially of this kind, is considered to involving many steps.

But the users often miss the easiest step that is restarting the PC or laptop that the user will be using. So, may it be Windows Update Error Code 0x80070643 or any other issues of a similar kind, the very first step that the user should be focussing on is to restart the computer.

Once the restart is done, the user should make sure that the installation of the program is done again. Sometimes there is a requirement of any computer program to begin the work normally only after the system is restarted.

So if the restarting of the system resolves the issue of Windows Update Error Code 0x80070643, then continue with the work, or else there are many more steps to be followed.

Method 2: Disable the Antivirus Program

There can be a situation where Error Code 0x80070643 is occurring due to the clash between the antivirus program which is present in the system of the user and the applications or other Windows update that the user is trying to use. So if this is the case or maybe there are chances for this case to occur, the user is advised to disable the antivirus program temporarily.

Below are the steps mentioned to disable the antivirus present on the system. Just follow the steps, and this will resolve the issue of Error Code 0x8007064.

Step 1: To begin the process, we need to first select the antivirus software. This can be done by right-clicking on the icon of the Antivirus Software. The icon can be found on the list of installed software on Windows.

Step 2: After selecting the icon of the antivirus software, there will be a list of options arriving. The user is required to click on Disable.

Step 3: We need to select the time frame. This time frame will be decided as per the wish of the user. In this time frame, the antivirus software will remain disabled.

Step 4: The minimum time frame that is usually present is 15 to 30 minutes.

Step 5: Once the time frame is decided, the user is required to run the Windows Defender.

Step 6: The user should keep a note of whether the message of the Windows Defender fails along with the Error Code 0x8007064.

If Error Code 0x80070643 is solved with the above-mentioned steps, then continue with the work. Or else the user will have to hold on to the patience and try the next solution.

Method 3: Install the Latest Version of .NET Framework

One of the most important factors regarding the installation of the updates related to the system is The .Net Framework. There are cases where The .Net Framework that is present on the computer of the user is corrupted. There can also be a chance that The .Net Framework is missing from the system of the user.

So the user is advised to download the latest version of The .Net Framework. This installation can be done from Microsoft and then install in the system used by the user.

Here are the steps mentioned below to install the latest version of The .Net Framework.

Step 1: To begin the process, we are required to move to the official site of the Microsoft .Net Framework.

Step 2: Then, we are required to select the latest available version of The .Net Framework.

Step 3: In case the user is in need to download the other versions of any other specific older version of The .Net Framework, then it can also be done once the procedure of installation of the latest version of The .Net Framework is performed.

Step 4: There will be an option of Download. We need to select that.

Step 5: After the downloading of the file is completed, there will be a set of on-screen instructions that will be provided to the user. The user will have to follow the instructions accordingly. Be careful while initializing any process because one wrong step and the entire downloading can get canceled.

Step 6: Once the installation is performed, the user will have to run the Windows Update again. The user should check at this point in time whether the system updates can be installed or not.

If the above-mentioned steps resolve the problem of Error Code 0x80070643, then the user can continue the work just like before, and if not, then also there is no need to worry about more of the solutions that are yet to be performed.

Method 4: Restart Windows Installer Service in Your PC

It is not something new that there has been the presence of improper configurations present in the Windows Installer service. This is often considered as one of the main causes of the popping up of the Error Code 0x8007064. So in order to fix this issue of Error Code 0x80070643, we are required to restart the Windows Installer Service.

Here are the steps following which the Windows Installer Service can be restarted.

Step 1: To begin the process, we are required to press the Windows Key and the R key simultaneously.

Step 2: Once we have performed step 1, the Run Box will appear on the screen.

Step 3: We are now required to type ‘services.msc’.

Step 4: Continue the process by pressing the Enter button. This will open the Services window.

Step 5: Next, we will face a lot of options. Among them, we are required to click on the Windows Installer.

Step 6: Then select the Restart option.

Step 7: The user will have to check now if the Error Code 0x80070643is gone.

If the issue of Error Code 0x80070643 is solved with the above-mentioned steps, then continue with the work. Or else the user will have to hold on to the patience and try the next solution.

Method 5: Manually Update Windows Defender on Your PC

The next solution to resolve the problem of Error Code 0x80070643 is to manually update the Windows Defender, which is present on the system of the user.

Here are the steps following the user can update the Windows Defender manually:

Step 1: To begin the process, we are required to press the Windows Key and Q buttons at the same time.

Step 2: The Windows Defender should be searched and opened.

Step 3: Once inside the Windows Defender, we will come across various options. We are required to select the option which says Protection Areas.

Step 4: Under the Protection Area, we are required to select the option of Virus and threat protection.

Step 5: Then, we need to select the option which says Virus and threat protection update.

Step 6: Now, the user is required to search for the check for the updates button. This is a bit time-consuming process and will take a few minutes to complete. So just wait for few minutes for the installation to complete

Step 7: Save the changes that have been made.

Step 8: The user will have to restart the computer.

If the issue of Error Code 0x80070643 is solved with the above-mentioned steps, then continue with the work. Or else the user will have to hold on to the patience and try the next solution.

or

This process can be performed in another way as well. The only difference that is in these steps, Command Prompt is used. With the help of the Command Prompt, Windows Defender is updated in the system of the user by following the steps given below:

Step 1: To begin the steps, we are required to press the Windows Key and X keys at the same time.

Step 2: Then choose the Command Prompt Admin option.

Step 3: Once inside the Command Prompt, we are required to type the command “%PROGRAMFILES%\Windows Defender\MpCmdRun.exe”- Remove Definitions OR the command “%PROGRAMFILES%\Windows Defender\MpCmdRun.exe”- SignatureUpdate. These commands will be typed in cmd.

Step 4: Press the Enter button after typing each of the commands.

Step 5: After the command is typed, the processing will take place.

Step 6: Finally, the user will have to close cmd and then restart the system.

If the issue of Error Code 0x80070643 is solved with the above-mentioned steps, then continue with the work. Or else the user will have to hold on to the patience and try the next solution.

Method 6: Run Scannow or SFC on Your PC

There are chances that there might be the presence of corrupted files on the system of the user. And if there are, then, in that case, the Windows Update will find difficulty in installing the updates on the system.

So the thing that will be used by us to resolve this problem is an SFC scanner. The main function of an SFC scanner is to find the corrupted files and then replace them. This will make sure that the Windows Update will be able to install the updates like before

So here are the steps to run the SFC Scan and resolve the issue.

Step 1: To begin with, press the Windows Key and X buttons at the same time.

Step 2: A list of the menu will appear to the user, and then select the option of Command Prompt (Admin) from the list of options.

Step 3: Once inside the Command Prompt, type “sfc /scannow”.

Step 4: Then press the Enter button.

Step 5: This process will take a bit of time. This is because the system will be starting the process of scanning.

Step 6: Once the scanning process is completed, the user is advised to install the system updates.

If the issue of Error Code 0x80070643 is solved with the above-mentioned steps, then continue with the work. Or else the user will have to hold on to the patience and try the next solution.

Method 7: Perform a Clean Boot of Your PC

This solution of Clean Booting the system of the user is basically performed when there is some third-party software present on the system of the user. This third-party software makes it difficult for Windows Updates to install the latest updates. So in order to resolve the conflict

between the third-party software and Windows, we are required to clean boot the system. Once the system is clean booted, the user should not be facing the Error Code 0x80070643 anymore. In case the Error Code 0x80070643 is not shown anymore, the user can continue with the work, and in case the Error Code 0x80070643 still shows up, the user will have to try the other solutions.

Method 8: Use Troubleshooting

The solution that we are going to talk about in this section is the most common and obvious of all. So in this part, we will come across the steps to troubleshoot our system and get rid of the Error Code 0x80070643.

Here are the steps to start the troubleshooting:

Step 1: The process of troubleshooting begins with the selection of the Click menu.

Step 2: Once we choose the click menu, we need to type the word troubleshoot in the search option.

Step 3: The troubleshoot will be displayed. Choose the option from the list.

Step 4: Now select the Windows Update option

Step 5: From the list that will be provided, we need to select the Run the Troubleshooter option.

Step 6: A lot of on-screen instructions will be provided. The user is required to follow all the on-screen options carefully. Mistakes can lead to the cancellation of the troubleshooting.

Step 7: After the on-screen instructions are followed, let the Windows Update Troubleshoot option run.

Step 8: Now, the user will have to restart the system.

The above-mentioned steps should be able to resolve the Error Code 0x80070643, if not then move to the next solution.

Method 9: Use the System Restore Feature

The System Restore feature’s main function is to make sure that the Windows Operating System is stable and correctly restored. But the best part is that none of the data or any kind of personal information will be lost. The user should also know that some of the drivers or the applications might get removed from the system.

So in the situation where the user is facing the Error Code 0x80070643 during the installation of the updates then the user is advised to create a system restore point. This will make sure that the Error Code 0x80070643 is resolved. If not, then try the other solutions.

Method 10: Reset the Components of Windows Updates

In this solution, we will reset the components of Windows Updates. So here are the steps to be performed:

Step 1: To begin the process, we need to press the Windows Key and X keys.

Step 2: Select the option of Command Prompt (Admin).

Step 3: We are then required to type the following commands:

“net stop wuauserv”, “net stop cryptSvc”, “net stop bits” and “net stop msiserver”.

Step 4: Press the Enter button after typing each of the commands.

Step 5: Then in order to start the Windows Update Services, type the following command: “net start wuauserv”, “net start cryptSvc”, “net start bits” and “net start msiserver”.

Step 6: Press the Enter button after typing each of the commands.

Step 7: Save the changes that have been made.

Step 8: Reboot the system.

The above-mentioned steps should be able to resolve the Error Code 0x80070643, if not then move to the next solution.

Method 11: Uninstall Windows Defender Update

The Windows 10 Operating System is quite familiar with the fact that there is no option for them to System Restore the points in the system. Moreover, the frequent adds to the difficulty of the users. So one of the ways to get rid of the Error Code 0x80070643 is to remove the Windows Defender Update from the system.

Here are the steps to be followed:

Step 1: To begin the process, we need to press the Windows Key and R buttons at the same time.

Step 2: The Run window will open.

Step 3: The user will have to type “appwiz.cpl”.

Step 4: Press the Enter button.

Step 5: The Programs and Features option will open.

Step 6: On the left side of the screen, we will find an option of View Installed Updates.

Step 7: Select the option

Step 8: Move to Microsoft Windows.

Step 9: Select the option Windows Defender or KB4054517 Update.

Step 10: Select the option of Uninstall.

Step 11: Restart the computer.

If the issue of Error Code 0x80070643 is solved with the above-mentioned steps, then continue with the work. Or else the user will have to hold on to the patience and try the next solution.

Method 12: Update Using Administrative Permissions

Often there are some updates of the system which require the arrangement of some specific administrative rights. These specific administrative rights are required for the installation of the updates into the system of the user.

So here are the steps that are advised to the user to get rid of the error code 0x80070643.

Step 1: The user should make sure that the user is signed in the system used by him or her. The user should not use the system as a guest login or through any lesser privileged account.

Step 2: In case the system belongs to a specific domain, and the user is unaware of that domain, then, in that case, the user is required to contact the administrator as soon as possible.

The above-mentioned steps should be able to resolve the Error Code 0x80070643. If not, then move to the last solution.

Method 13: Run SubInACL Tool

There might be some users who are still using the older versions of Windows like Vista or Windows XP. SO there are chances for the presence of a bug in the system. This bug will involve the .NET Framework 2.0. This situation usually takes place when due to the incorrect access control list provides permission which sets back. Ultimately this will cause interference in the installation of some applications.

In order to get rid of the problem, we use the SubInACL tool. This tool helps in repairing the problem by fixing the corrupted or damaged files and providing them with registry permissions that are required for the installation of the MSI-based setups.

So here are the steps to be followed to carry out the process:

Step 1: In the very first step, we are required to download the SubInACL tool.

Step 2: Install the SubInACL in the system.

Step 3: The SubInACL will get install into the following address: C:\ ProgramFiles  Windows Resource Kits\Tools

Step 4: The user will have to locate the file and then copy-paste the code in the notepad.

Step 5: In order to save the file, select the File option. Step 6: Select the Save As option from the list.

Step 7: Name the file as reset.cmd.

Step 8: The file type should be selected as All Files.

Step 9: Select the script by right-clicking on it.

Step 10: Select the Run on Administrator.

Step 11: The process will take a bit of time to complete the process of resetting of the reset.cmd file.

The above-mentioned steps should be able to resolve the Error Code 0x8007064.

Conclusion

In this article, we have got an idea about the issue of Error Code 0x80070643. We have begun the article with the causes of such an error and then explained the solutions to this problem one by one. If the readers are facing Error Code 0x80070643, then the solutions will surely be a help to them.

In the solutions, all the possible situations under which the Error Code 0x80070643 can occur is discussed. So we hope that the article will be a great help for those trying to resolve the problem of Error Code 0x80070643.