FIX: 0x80070643 Windows 10 Update Error (Solved)

This tutorial contains step-by-step instructions to resolve the error 0x80070643 in Windows 10 update: “There were some problems installing updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80070643)”.

The Error 0x80070643 in Windows 10 Update, usually occurs if the .NET Framework installation is damaged, or because of a corrupted update file.

To resolve the Windows Update error “0x80070643”, follow the methods below.

How to FIX: 0x80070643 error in Windows 10 Update.

Important: Before proceeding to the methods below, try the following and try to install the update again:

a. Disable or temporarily uninstall your Security/Antivirus Software.
b. Disconnect all USB devices (e.g. USB Flash Disks, the USB Wireless receiver for you mouse or keyboard, etc.).
c. if you receive the Update error “0x80070643”, when installing a specific update, then check if the update is already installed and if it is, then uninstall it and then try to update again. *

* For example, if you receive the error “0x80070643” when installing the “Update for Windows 10 Version 1803 for x64 based Systems (KB4023057).

1. Navigate to Control Panel > Programs and Features.
2. In ‘Programs and features’ click View Installed Updates on the left.
3. Then search if the failed update is already installed, by using its KB number. (e.g. “KB4023057” at this example). If it is installed, then select it and click Uninstall. *

* Note: If you cannot find the update in the “Installed Updates” list, go to: Settings > Apps > Apps & features. Type the KB number of the failed update on then search box and if you found it, select it and click Uninstall.

4. Restart your system and try to update Windows.

Method 1. Repair .NET Framework.

The first method to resolve the error 0x80070643 in Windows 10 update, is to repair the .NET Framework. To do that:

1. Download and Run the Microsoft .NET Framework Repair Tool.
2. At the first screen Accept the License terms and click Next.
3. Click Next again, at “”Recommended changes” screen.

4. Do not close the ‘ Changes complete’ window, and proceed as follows:

5. Download and install the latest .NET Framework version. (.NET Framework Runtime)

6. When the .NET Framework installation is completed, try to update Windows. If the problem persists, click Next at ‘NET Framework Repair Tool’ to try to resolve the problem.

Method 2. Delete the ‘SoftwareDistribution’ Folder.

The “C:WindowsSoftwareDistribution“ folder, is the location where Windows store the Windows Updates. Many times, this folder becomes corrupted and you must re-create it in order to download the updates from scratch. To rebuild (re-create) the “SoftwareDistribution” folder follow the steps below:

Step 1: Stop Windows Update Service.

1. Open Windows Services control panel: To do that:

• Press Windows + R keys to open the run command box.
• In the Search box, type: services.msc  & click OK.
• (Accept the UAC warning if appears).

2. In Services control panel locate the “Windows Update” service.
3. Right-click on Windows Update service and select “Stop”.

Step 2: Delete the SoftwareDistribution folder.

1. Open Windows Explorer and navigate to: C:Windows folder.
2. Find and Delete the “SoftwareDistribution” folder (or rename it. e.g. to “SoftwareDistributionOLD”) .

Step 3: Start the Windows Update Service.

1. Open Windows Services control panel.
2. Right-click on Windows Update service and select “Start”.

Step 4: Check and Install Windows 10 Update.

1. Navigate to Settings -> Update and Security and click Check for Updates.

Method 3. Update Windows 10 by using the Update Assistant

1. Navigate to Windows 10 download site and click the Update now button.

2. Save the “Windows10Upgrade9252.exe” file on your desktop.
3. Double click at the downloaded file to open the Windows Upgrade Assistant.
4. Click Update Now to start the update.

5. Let Windows to finish the downloading and the verification.
6. When the verification is reaches 100%, disconnect your computer from the Internet, or set it to “Airplane mode“.
7. Wait until Windows updating your system.
8. When prompted, restart your system to install the update.

Method 4. Update Windows 10 from ISO/USB.

The next method the Windows 10 update error 0x80070643″ is to update Windows 10, from the Windows ISO file. To do that:

Step 1. Download Windows 10 in a ISO File.

1. Navigate to Windows 10 download page and download the Media Creation Tool.

2. Run the ‘Media Creation Tool’ and Accept the License Terms at the first screen.
3. Select Create installation media for another PC.

4. At ‘Language, architecture and edition’ screen click Next.
5. Select ISO file and click Next.

6. Save the ‘Windows.iso’ file to your desktop.
7. The Media Creation Tool will now begin to download the Windows 10 in an ISO format.
8. When the download is completed, close the Media Creation Tool.

Step 2. Update Windows 10 from the ISO file.

1. Disconnect your computer from the Internet, (or set it to “Airplane mode” if you own a laptop).
2. Disable or temporarily uninstall any third-party antivirus.
3. Then, right click on the “Windows.iso” file (on your desktop) and click Mount.
4. Double click at Setup application.

5. At the below screen choose ‘Not right now’ and click Next.

6. Follow the rest onscreen instructions to update your system. *

Method 5. Clean install Windows 10.

The last method, to fix the Windows 10 Upgrade issues, is to perform a clean installation of Windows 10 on your system.

Important: The clean Windows 10 installation means that all your files and settings will be lost during the installation process. So, proceed and backup all your important files and settings to another storage media before continue. (e.g. to an external USB drive).

To perform a clean Windows 10 installation read the instructions on this article: How to clean install Windows 10

That’s all folks! Did it work for you? Please leave a comment in the comment section below or even better: like and share this blog post in the social networks to help spread the word about this solution.

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