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Fix Windows Update Error 0x80070643

You may not be able to update Windows 10 because when you open Settings then go to Update & Security, then under Windows Update you will see an error message “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)”.

Fix Windows Update Error 0x80070643

Now, as we all know, Windows Updates are very important as they patch system vulnerabilities and makes your PC more secure from the external exploit. The Windows Update Error 0x80070643 may be caused by corrupted or outdated system files, incorrect Windows update configuration, corrupted SoftwareDistribution folder, etc. Anyway, without wasting any time, let’s see How to Fix Windows Update Error 0x80070643 with the help of the below-listed tutorial.

Fix Windows Update Error 0x80070643

Make sure to create a restore point just in case something goes wrong.

Method 1: Install the latest .NET Framework

Sometimes this error is caused by damaged .NET Framework on your PC and installing or re-installing it to the latest version can fix the issue. Anyway, there is no harm in trying, and it will only update your PC to latest .NET Framework. Just go this link and download the .NET Framework 4.7, then install it.

Download latest .NET Framework

Download .NET Framework 4.7 offline installer

Method 2: Run Windows Update Troubleshooter

1. Press Windows Key + I to open Settings then click on Update & Security.

Click on Update & security icon | Fix Windows Update Error 0x80070643

2. From the left-hand menu, make sure to select Troubleshoot.

3. Now under Get up and running section, click on Windows Update.

4. Once you click on it, click on “Run the troubleshooter” under Windows Update.

Select Troubleshoot then under Get up and running click on Windows Update

5. Follow on-screen instructions to run the troubleshooter and see if you’re able to Fix Windows Update Error 0x80070643.

Run Windows Update Troubleshooter to fix Windows Modules Installer Worker High CPU Usage

Method 3: Run SFC and DISM

1. Open Command Prompt. The user can perform this step by searching for ‘cmd’ and then press Enter.

Open Command Prompt. The user can perform this step by searching for ‘cmd’ and then press Enter.

2. Now type the following in the cmd and hit enter:

Sfc /scannow

SFC scan now command prompt

3. Wait for the above process to finish and once done, restart your PC.

4. Again open Command Prompt and perform this step by searching for ‘cmd’ and then press Enter.

5. Now type the following in the cmd and hit enter after each one:

Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /ScanHealth
Dism /Online /Cleanup-Image /RestoreHealth

DISM restore health system

6. Let the DISM command run and wait for it to finish.

7. If the above command doesn’t work, then try on the below:

Dism /Image:C:\offline /Cleanup-Image /RestoreHealth /Source:c:\test\mount\windows
Dism /Online /Cleanup-Image /RestoreHealth /Source:c:\test\mount\windows /LimitAccess

Note: Replace the C:\RepairSource\Windows with your repair source (Windows Installation or Recovery Disc).

8. Reboot your PC to save changes.

Method 4: Restart Windows Update Service

1. Press Windows Key + R then type services.msc and hit Enter.

services windows

2. Find Windows Update service in this list (press W to find the service easily).

3. Now right-click on Windows Update service and select Restart.

Right-click on Windows Update Service and select Restart

Try to perform Windows Update again and see if you’re able to Fix Windows Update Error 0x80070643.

Method 5: Run .BAT File to Re-register DLL files

1.Open Notepad file then copy & paste the following code as it is:

net stop cryptsvc
net stop wuauserv
ren %windir%\system32\catroot2 catroot2.old
ren %windir%\SoftwareDistribution SoftwareDistribution.old
regsvr32 comcat.dll /s
Regsvr32 Msxml.dll /s
Regsvr32 Msxml2.dll /s
proxycfg -u
Regsvr32 Msxml3.dll /s
regsvr32 shdoc401.dll /s
regsvr32 cdm.dll /s
regsvr32 softpub.dll /s
regsvr32 wintrust.dll /s
regsvr32 initpki.dll /s
regsvr32 dssenh.dll /s
regsvr32 rsaenh.dll /s
regsvr32 gpkcsp.dll /s
regsvr32 sccbase.dll /s
regsvr32 slbcsp.dll /s
regsvr32 mssip32.dll /s
regsvr32 cryptdlg.dll /s
regsvr32 wucltui.dll /s
regsvr32 shdoc401.dll /i /s
regsvr32 dssenh.dll /s
regsvr32 rsaenh.dll /s
regsvr32 gpkcsp.dll /s
regsvr32 sccbase.dll /s
regsvr32 slbcsp.dll /s
regsvr32 asctrls.ocx /s
regsvr32 wintrust.dll /s
regsvr32 initpki.dll /s
regsvr32 softpub.dll /s
regsvr32 oleaut32.dll /s
regsvr32 shdocvw.dll /I /s
regsvr32 shdocvw.dll /s
regsvr32 browseui.dll /s
regsvr32 browseui.dll /I /s
regsvr32 msrating.dll /s
regsvr32 mlang.dll /s
regsvr32 hlink.dll /s
regsvr32 mshtmled.dll /s
regsvr32 urlmon.dll /s
regsvr32 plugin.ocx /s
regsvr32 sendmail.dll /s
regsvr32 scrobj.dll /s
regsvr32 mmefxe.ocx /s
regsvr32 corpol.dll /s
regsvr32 jscript.dll /s
regsvr32 msxml.dll /s
regsvr32 imgutil.dll /s
regsvr32 thumbvw.dll /s
regsvr32 cryptext.dll /s
regsvr32 rsabase.dll /s
regsvr32 inseng.dll /s
regsvr32 iesetup.dll /i /s
regsvr32 cryptdlg.dll /s
regsvr32 actxprxy.dll /s
regsvr32 dispex.dll /s
regsvr32 occache.dll /s
regsvr32 occache.dll /i /s
regsvr32 iepeers.dll /s
regsvr32 urlmon.dll /i /s
regsvr32 cdfview.dll /s
regsvr32 webcheck.dll /s
regsvr32 mobsync.dll /s
regsvr32 pngfilt.dll /s
regsvr32 licmgr10.dll /s
regsvr32 icmfilter.dll /s
regsvr32 hhctrl.ocx /s
regsvr32 inetcfg.dll /s
regsvr32 tdc.ocx /s
regsvr32 MSR2C.DLL /s
regsvr32 msident.dll /s
regsvr32 msieftp.dll /s
regsvr32 xmsconf.ocx /s
regsvr32 ils.dll /s
regsvr32 msoeacct.dll /s
regsvr32 inetcomm.dll /s
regsvr32 msdxm.ocx /s
regsvr32 dxmasf.dll /s
regsvr32 l3codecx.ax /s
regsvr32 acelpdec.ax /s
regsvr32 mpg4ds32.ax /s
regsvr32 voxmsdec.ax /s
regsvr32 danim.dll /s
regsvr32 Daxctle.ocx /s
regsvr32 lmrt.dll /s
regsvr32 datime.dll /s
regsvr32 dxtrans.dll /s
regsvr32 dxtmsft.dll /s
regsvr32 WEBPOST.DLL /s
regsvr32 WPWIZDLL.DLL /s
regsvr32 POSTWPP.DLL /s
regsvr32 CRSWPP.DLL /s
regsvr32 FTPWPP.DLL /s
regsvr32 FPWPP.DLL /s
regsvr32 WUAPI.DLL /s
regsvr32 wups2.dll /S
regsvr32 WUAUENG.DLL /s
regsvr32 ATL.DLL /s
regsvr32 WUCLTUI.DLL /s
regsvr32 WUPS.DLL /s
regsvr32 WUWEB.DLL /s
regsvr32 wshom.ocx /s
regsvr32 wshext.dll /s
regsvr32 vbscript.dll /s
regsvr32 scrrun.dll mstinit.exe /setup /s
regsvr32 msnsspc.dll /SspcCreateSspiReg /s
regsvr32 msapsspc.dll /SspcCreateSspiReg /s
proxycfg –d
sc sdset wuauserv
D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;
;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
regsvr32 mshtml.dll /s
net start cryptsvc
net start wuauserv

2. Now click on File then select Save As.

From Notepad menu click on File then select Save As

3. From Save as type drop-down select “All Files” and navigate where you want to save the file.

4. Name the file as fix_update.bat (.bat extension is very important) and then click Save.

Select ALL files from save as type & name the file as fix_update.bat and click Save

5. Right-click on the fix_update.bat file and select Run as Administrator.

6. This will restore and register your DLL files fixing the Windows Update Error 0x80070643.

Method 6: Temporarily Disable Antivirus and Firewall

Sometimes the Antivirus program can cause an error, and to verify this is not the case here, and you need to disable your antivirus for a limited time so that you can check if the error still appears when the antivirus is off.

1. Right-click on the Antivirus Program icon from the system tray and select Disable.

Disable auto-protect to disable your Antivirus

2.  Next, select the time frame for which the Antivirus will remain disabled.

select the duration until when the antivirus will be disabled

Note: Choose the smallest amount of time possible, for example, 15 minutes or 30 minutes.

3. Once done, again try to connect to open Google Chrome and check if the error resolves or not.

4. Search for the control panel from the Start Menu search bar and click on it to open the Control Panel.

Type Control Panel in the search bar and press enter | Fix Windows Update Error 0x80070643

5. Next, click on System and Security then click on Windows Firewall.

click on Windows Firewall

6. Now from the left window pane click on Turn Windows Firewall on or off.

Click on Turn Windows Defender Firewall on or off present on the left side of the Firewall window

7. Select Turn off Windows Firewall and restart your PC.

Click on Turn off Windows Defender Firewall (not recommended)

Again try to open Google Chrome and visit the web page, which was earlier showing the error. If the above method doesn’t work, please follow the same steps to turn on your Firewall again.

Method 7: Install the Updates Manually

1. Right-click on This PC  and select Properties.

Right-click on This PC or My Computer and select Properties

2. Now in System Properties, check the System type and see if you have a 32-bit or 64-bit OS.

Check the System type and see if you have a 32-bit or 64-bit OS | Fix Windows Update Error 0x80070643

3. Press Windows Key + I to open Settings then click on Update & Security icon.

Press Windows Key + I to open Settings then click on Update & security icon

4. Under Windows Update note down the “KB number of the update which fails to install.

Under Windows Update note down the KB number of the update which fails to install

5. Next, open Internet Explorer or Microsoft Edge then navigate to Microsoft Update Catalog website.

6. Under the search box, type the KB number you noted in step 4.

Open Internet Explorer or Microsoft Edge then navigate to Microsoft Update Catalog website

7. Now click on Download button next to the latest update for your OS type, i.e. 32-bit or 64-bit.

8. Once the file is downloaded, double-click on it and follow on-screen instructions to complete the installation.

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That’s it you have successfully Fix Windows Update Error 0x80070643 but if you still have any queries regarding this post then feel free to ask them in the comment’s section.

nv-author-image

Aditya Farrad

Aditya is a self-motivated information technology professional and has been a technology writer for the last 7 years. He covers Internet services, mobile, Windows, software, and How-to guides.

3 thoughts on “Fix Windows Update Error 0x80070643”

  1. Jayanta Basumatary

    trying to download it manually but not working. sfc scan n dsim also not showing anything related to this error.

  2. METHOD 7: Install the Updates Manually
    Microsoft Update Catalog
    Search Results: KB2267602 NOT FOUND!
    But, Windows Update finds it and keeps trying to install it.

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