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KB5007651 install error 0x80070643: 7 Fixes

Updating Windows is usually quite a hassle-free experience. That said, sometimes you can run into problems when updating your Windows installations, and specific updates can also be problematic to install. 

In this article, we’re looking at error code 0x80070643 that you might see when installing the Windows KB5007651 update. We’ll be going over why this error happens and what you can do to fix the problem.


What causes the KB5007651 error?

Generally, Windows update errors are caused by either a broken update or corrupt system files. However, some other popular reasons include:

  • Internet connectivity issues.
  • Overly aggressive antivirus
  • Missing, outdated or corrupt .NET framework installation. 
  • Damaged Windows Update components. 

Also read: Windows error 0x0 0x0: 6 Fixes


How to fix the KB5007651 install error 0x80070643?

Here are seven solutions you can try to fix the KB5007651 install error 0x80070643.

Restart your PC

Restarting your PC is one of the most simple and effective solutions to any problem you face while using Windows. Graphics issues, network problems, update glitches and rebooting got you covered.

It’s also not a bad idea to check your internet connection quickly. A dead or inactive internet connection can sometimes be the root cause of many problems.


Run an SFC scan

Corrupt files are the number one reason your PC might behave weirdly. Here’s how you can get rid of them and potentially resolve your issue. 

Step 1: Press the Windows Key + S to bring up the Cortana/Search box and search for Powershell. Open Windows Powershell from the search results.

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Step 2: Type sfc /scannow to scan your system for issues. 

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Step 3: If the SFC scan finds any problems, use the following command to resolve them. 

DISM /Online /Cleanup-Image /RestoreHealth
Windows 10 start menu won't open: 6 fixes | Candid.Technology

Restart your PC, and the KB5007651 install error 0x80070643 should be gone.

Also read: Samsung remote blinking red: 7 Fixes


Run the Windows Update Troubleshooter

Windows offers a slew of inbuilt troubleshooters that can resolve any issue on your PC, including Windows Update.

Step 1: Press Windows Key + I to open Windows settings and click on Update & Security.

How to fix Windows update error 8007000E? | Candid.Technology

Step 2: Head over to the Troubleshooting tab.

How to fix Windows update error 8007000E? | Candid.Technology

Step 3: Click on Additional troubleshooters.

How to fix Windows update error 8007000E? | Candid.Technology

Step 4: Click the Windows Update troubleshooter to run it and let the troubleshooter do its thing. 

How to fix Windows update error 8007000E? | Candid.Technology

Once the troubleshooter has run, try updating your PC again. 


Restart the Windows Update Service

The Windows Update service is responsible for periodically checking for any new updates Microsoft may release. Restarting this service can help get your machine on track. 

Step 1: Press Windows Key + R to open the Run prompt. Type services.msc and hit enter.

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Step 2: Find the Windows Update service. Right-click it and select Stop. 

Windows update error 80072ee2: 5 Fixes | Candid.Technology

Step 3: Return to the Services Console and restart the Windows Update service in step 2. 

Windows update error 80072ee2: 5 Fixes | Candid.Technology

Now try running the Windows update again to see if the update goes through. 

Also read: M.2 drive not showing up: 6 Fixes


Reset Windows Update modules

Another thing you can try is completely resetting Windows Update modules to get them to work properly. 

Step 1: Press Windows Key + X to open the Quick Access menu and click on Command Prompt (Admin).

How to fix Windows update error 8007000E? | Candid.Technology

Step 2: Type the following command in the prompt and press Enter.

net stop wuauserv

cd %systemroot%

ren SoftwareDistribution SoftwareDistribution.old

net start wuauserv

net stop bits

net start bits

net stop cryptsvc

cd %systemroot%\system32

ren catroot2 catroot2.old

net start cryptsvc

regsvr32 Softpub.dll /s

regsvr32 Wintrust.dll /s

regsvr32 Initpki.dll /s

regsvr32 Mssip32.dll /s
How to fix Windows update error 8007000E? | Candid.Technology

Restart your PC and try again. 


Check the .NET framework

Issues with your .NET framework’s installation or functioning can also trigger the issue. Here’s how to check if it’s running fine. 

Step 1: Press the Windows key + R to open the Run prompt. Type in appwiz.cpl and press enter.

How to fix Windows 10 update error 0x800f0922?

Step 2: Click on Turn Windows features on or off in the left pane.

How to fix Windows 10 update error 0x800f0922?

Step 3: Check any boxes related to the .NET framework and click OK.

How to fix Windows 10 update error 0x800f0922?

Now restart your PC and try again. 


Install the latest version manually

If nothing else works, instead of relying on Windows updates, you can head over to Microsoft’s official download page and download the latest version of Windows manually and install it on your system.

Alternatively, you can also use the Media Creation Tool from Microsoft to install Windows 10 on a bootable flash drive and reinstall the OS on your machine.

The Windows Media Creation tool is a great way to install Windows and repair the OS. Using this, you can perform a clean installation or repair your OS without affecting your personal data.

You can download the Media Creation Tool here

Also read: ISO files in Windows 11: Everything you need to know

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