Windows Error Code 0x426-0x0: How To Fix?

Windows Error Code 0x426-0x0 How To Fix

I usually don’t use Office applications, but my boss asked me to create a presentation. So, I thought it was no big deal, I would make a slideshow on Powerpoint in 15 minutes, and everything would be good to go. 

To my surprise, when I tried opening the app, it gave me the dreadful microsoft office error code 0x426-0x0. At that time, I had no idea what it meant and how to fix it. But I explored the issue at hand, and with the help of Google (obviously), I learned about this error code and shortlisted some solutions. 

What Causes Error 0x426-0x0?

Microsoft Error 0x426-0x0 is a general error that can occur when using Microsoft applications such as Word, Excel, PowerPoint, Outlook etc. This error may be due to various factors, including unsuccessful installation, corrupt files, or incorrect settings.

How To Fix Error Code 0x426-0x0: Solutions

1. Turn The Microsoft Office Click To Run To Automatic

If Microsoft Office’s click-to-run service is not set to Automatic, then none of its applications will be able to launch. To fix this issue, follow these steps:

  1. Go to the start menu, search for ‘Services,’ and open the services app.

2. Navigate the services to find ‘Microsoft Office click to run.’

3. Check if it is set to ‘Running’ and ‘Automatic.’


4. If not, right-click on it and go to the ‘Properties.’

5. From the new dialogue box, change the Startup Type to ‘Automatic.’


2. Repair Microsoft 365

You can try to set up a quick repair of Microsoft Office to eliminate any minor issues that are acting up. 

Here’s how to repair Microsoft Office:

  1. Open ‘Control Panel’ and go to ‘Programs.’
  2. Now, go to ‘Programs and Features.’

3. Select ‘Microsoft 365 App’ and select the third option from top ‘Change.’


4. Give permission to let the ‘app make changes to your device’ by clicking ‘Yes’.

5. A dialogue box will pop up asking for the type of repair you want. Select ‘Quick Repair’ and click ‘Repair’ from the bottom of the box.


3. Disable Firewall

The Firewall may be preventing your Microsoft Office applications from launching. So, you can disable the firewall temporarily to see if it is the issue. 

Remember that it isn’t recommended to turn off the Firewall for a long time as your computer will be more vulnerable to malware and other threats without antivirus protection. 

Here’s how to disable the Firewall:

  1. Open the ‘Control Panel’ from the Start menu and go to the System and Security section.

2. In the Security section, select ‘Windows Defender Firewall.’


3. On the left side of the window, select ‘Turn Windows Firewall on or off.


4. For both Private and Public networks, select Turn off Windows Firewall.

5. Click OK to save your changes.


Disable Any Other Type Of Antivirus

Like the Firewall, any other third-party antivirus might interfere with the launch of Microsoft Office. So, disable antivirus software running in the background for 10 to 20 minutes. 

You can right-click on your antivirus’ icon in the system tray, and there will be suggestions for time duration for stopping it. Select the suitable one and try launching the Office applications at that time.

4. End All Office Tasks

If you have some Office applications open in the background, they might be causing problems for the new ones to launch. As a result, you will experience the microsoft office error code 0x426-0x0. You might be able to fix this issue by ending the previously running Office processes.

Here are the steps to end all office-related processes:

  1. Open the Windows Task Manager with the shortcut Ctrl+Shift+Esc.
  2. Click on the “Processes” tab.
  3. Look for any process that has “Office” in the name or falls under this tab.
  4. Select the task and right-click on it and from the drop-down list, click on “End Task”.

5. Click on the “Yes” button to confirm that you want to end the process.

6. Repeat steps 4 and 5 for each of the office-related processes.

7. Close the Task Manager.

If this does not solve the microsoft office error code 0x426-0x0, then move on to the next solution.

5. Uninstall The Office Suite And Reinstall It

  1. Go to “Control Panel” and select ‘uninstall a program’ under ‘Programs.’
  2. Search for ‘Microsoft Office’ in the search bar at the top left corner and select the office programs.

3. Right-click on the office programs and uninstall them and restart the Windows

4. For properly uninstalling every bit of office applications, go to the ‘Files Explorer’ and go to the ‘Local Disc (C:).’

5. Now locate ‘Program Files’ if you had a 64-bit version of Office suite and look for ‘Program Files (x86) if you had a 32-bit version.


6. Select all Microsoft Office-related files and right-click on them, and select delete from the drop-down list.

7. Press ‘Windows Key and X’ to open ‘Run’ from the list. 

8. Now enter the command ‘regedit’ to open the Registry Editor.


9. Search for ‘HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office’ and right-click the file that comes up, and delete it.

10. Repeat the previous step by changing the highlighted part to ‘Office\ClickToRun’ and then ‘AppVISV.’

Reinstall Office

  1. Once you have completely cleaned out all the Office files, go to the Microsoft Office website and download it.
  2. Choose the correct version for your operating system (32-bit or 64-bit).
  3. Let the setup run and install the program following the basic instructions in the installation prompt.

Make sure to install the Office Suite properly, this time with a strong internet connection, to avoid any unnecessary inconveniences.

6. Contact Microsoft Office Support

If none of the solutions work, your last resort will be to contact the support team of Microsoft Office.

  1. Go to and sign in. After that, click on ‘Contact Us.’

2. Here, select ‘Get Support in the browser instead.’


3. Now write down your problem, ‘microsoft office error code 0x426-0x0’ and click OK.

4. They will suggest some articles to help solve this problem and another option of contacting them. Select ‘Contact Support.’


5. Now in ‘Products and Services,’ select ‘Microsoft 365 and Office’ and in ‘Category,’ select ‘Technical Support.’ Click confirm once done.


6. Select the support option shown in the picture below and provide your email address.


7. Now, just wait for an agent to get in touch with you and help you resolve your issue.