Office Error Codes – How to Fix

Solutions For Microsoft Error Codes!

Error Code 0x643 on Microsoft Office, Outlook and Windows Updates

Microsoft Office error code 0x643 info:

This error code 0x643 has  occurred generally when you trying to attempt to install Office and it’s getting not installed, such kind of  error message typically tries to explain this issues. There are many factor that can cause this error code 0x643. Generally this error occurs due to following things:

Something went wrong error of Office 365

  • Due to Microsoft Office system file get corrupt
  • Windows Firewall not allows to network access.
  • You may download partial setup..
  • Previous installation had not removed properly.

Troubleshooting steps to fix Windows Office error code 0x643 When you are installing Office, you would see this error code 0x643 if a previous installation of Office is failed. So, Here is some things you have to try to resolve this error code 0x643. Here We’ve mentioned some of the most common solutions first, so you can try them in order.

Common causes for Windows Office error code 0x643:

  • Your System Antivirus software or firewall might be blocking the Office installation.
  • Your Computer Internet connection or proxy settings are preventing for installing Office.
  • Might Pre-existing version of an Office suite is blocking the installation.
  • May be your System Incomplete\partial\failed repair\installation\change\removal of a previous Office Installation.
  • Office suite can prevent from installing a newer version.

Follow the below steps to fix the error code 0x643:

1 – Repair your Office app

This error code 0x643 will be fixed when Office repair tool replaces all the corrupted system files in your System. So you would Follow the below steps to run repair tool to fix this error.

  • Open Control Panel using Start.
  • Click on Programs and select Programs and Features.
  • Click on the Office product that you want to repair.
  • Click Change.
  • Select Quick Repair and click on Repair. If Quick Repair didn’t fix the error code 0x643, select Online Repair and click on Repair.

Note: If Office Repair did not troubleshoot this error then you can remove and reinstall the Office Suite to fix this error code 0x643.

2 – Steps to remove Office Suite

In case if this error continue even after running Office repair tool, uninstall Office from your System.

  • Open Control Panel using Start.
  • Click on Programs and select Programs and Features.
  • Select Office Suite and click on Remove.

Note: If Windows Office uninstallation failed or it didn’t fix this error then a manual uninstallation is required to completely remove the Windows Office.

3 – Steps to uninstall Microsoft Office manually from your PC to fix the error code 0x643

If the error code 0x643 is re-occurring, proceed with the following steps to manually remove Office program from your computer.

Step 1:  Try to Remove the Windows Installer packages form your Computer

  • Find the MS Office 2007 installation folder, typically located in C:\Program Files\.
  • Right-click the Microsoft Office 16folder and select Delete.

Step 2: Remove the Office running tasks

  • Open a Command Prompt in Computer as an administrator.
  • After opened command prompt , type the following commands at command prompt and press Enter after each one command:

schtasks.exe /delete /tn “\Microsoft\Office\Office Automatic Updates”

schtasks.exe /delete /tn “\Microsoft\Office\Office Subscription Maintenance”

schtasks.exe /delete /tn “\Microsoft\Office\Office Click To Run Service Monitor”

Step 3: Use Task Manager to end the current running task process or Click-to-Run tasks

  • Open Task Manager. (to open this use ‘ctrl+shift+esc’)
    Windows Task Manager Process
  • Click the Process tab
  • If the following processes are running, right-click each one, and then click End task after you select each process.
  • .exe
  • setup*.exe

Step 4: Delete the Microsoft Office files in your System

  • Press Windows logo key + R button together to open the Run dialog box.
  • In the Openbox, type %ProgramFiles%, and then click OK.
  • Delete the “Microsoft Office 365” folder.
  • Delete the “Microsoft Office” folder.
  • Open the Run dialog box, type %ProgramFiles(x86)%, and then click OK.
  • Delete the “Microsoft Office” folder.

Step 5: Delete the Office registry sub keys from your Windows

  • Open Registry Editor.
  • Delete the following registry sub keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\ClickToRun
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppVISV
HKEY_CURRENT_USER\Software\Microsoft\Office
Then Deletethe Office key.

Step 6: Delete the Start menu shortcuts

  • Open a Command Prompt window as an administrator.
  • Type %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs, and then press Enter.
  • Delete the “Microsoft Office 2016 Tools” folder.

4 – Download and install Office

1. Sign in to your My Account page using the link https://go.microsoft.com/fwlink/p/?LinkId=613327

2. Choose Install.

3. Click Run or the equivalent depending on the browser you’re using.

4. When you see “You’re good to go”, click All done.

Note: This article contains the troubleshooting steps to fix the Microsoft error code 0x643. If you have been followed till here following above steps that given and If you still getting this error, you may contact with Help desk for further assistance in solve this error code 0x643.


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Last Updated: 27/02/2018
Solution ID: 441314

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