Your Microsoft fan error code 0x426-0x0cpu is an error that shows up on the verge of installing files. They could hinder your device from launching specific data. I understand how troubling it might be to fix and troubleshoot. Still, in this article, I’ll be leading you through the whole process.

What is the Microsoft Error Code 0x426-0x0?

Microsoft Office error code 0x426-0x0 happens when your attempt to install Office fails. An error message would try explaining the cause. Many reasons could cause error code 0x426-0x0. However, the error occurs due to the system files corruption or previous installation files not removed properly. 

What Are The Causes of the Microsoft error code 0x426-0x0?

When you install Office, the error code 0x426-0x0 may pop up. This is if a previous installation of Office is failed. Here are some causes of the error code 0x426-0x0. 

I’ve got listed a few of the causes in Microsoft:

Your Antivirus software or firewall might be blocking the Office installation.
Your Internet connection or proxy settings are preventing you from installing Office.
A Pre-existing version of an Office suite may be blocking your installation.
An Incomplete\partial\failed repair\installation\change\removal of your previous Office suite can prevent you from installing a newer version.

What Are The Ways To Fix The Error Code 0x426-0x0?

Here is the list of troubleshooting steps to resolve the error code 0x426-0x0. Follow the steps that I have detailed in this article in the exact order to fix the error code 0x426-0x0. 

Investigate to see if the error fixed after finishing each troubleshooting step.  Performing the troubleshooting steps mentioned in this article should resolve the error code 0x426-0x0

Follow the steps below to troubleshoot the error code 0x426-0x0

Solution 1-  Repair your Office app

The error code 0x426-0x0 can be fixed when your Office repair tool replaces all the corrupted system files. 

Follow these steps to run the repair tool to fix the error:

Launch your Control Panel using Start on your desktop or keyboard.
Tap on your Programs and select the option tagged ‘Programs and Features.’
Now you can select the exact Office product that you intend to repair.
Once you have this, select change.
Choose Quick Repair and click on the option that reads Repair. 
If Quick Repair hasn’t fixed the error code 0x426-0x0, select Online Repair and click on Repair.

However, if Office Repair still failed to remove the error, then, remove and reinstall the Office Suite. This would handle the error code 0x426-0x0.

Solution 2 – Remove your Office Suite.

In case you still have the error after running the Office repair tool you would need, uninstall Office from your computer.

Open your Control Panel using Start.
Select your Programs and tap on the Programs and Features. Wait for it to load before your move further.
Choose your Office Suite and then click on Remove.

Note: If your Office uninstallation failed or the error wasn’t fixed, a manual uninstallation completely removes the Office Suite. You would find out ways to fix this in the next solution.

Solution 3 – Completely removing your Office Suite

If your error code 0x426-0x0 is re-occurring, continue with the following steps. They would manually remove the Office program from your computer. 

Step 1- Remove the Windows Installer packages.

Locate the Office 16 installation folder. You should see them in C:\Program Files\.
Then Right-click the Microsoft Office 16folder.
Choose to Delete.

Step 2- Remove your Office scheduled tasks.

Launch a Command Prompt window as your administrator.
At the command prompt, fill in the following commands and press Enter after each one:

“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 ClickToRun Service Monitor”

Step 3- Use your Task Manager in ending the Click-to-Run tasks

Open up your Task Manager.
Click on your Process tab.
If any of the following processes are active, right-click each one. Then you could click on End task after you select each method.



Step 4- Delete your Office files

Select your Windows logo key + R to open your Run dialog box.
In the Open box, type “%ProgramFiles%,” and you can click OK.
Delete all “Microsoft Office 16” folders from your device.
Also, Delete your “Microsoft Office” folder.
Next, open your Run dialog box and type %ProgramFiles(x86)%, before clicking on OK.

Step 5- Delete your Office registry subkeys.

Open Your registry Editor.
Delete the following subkeys from your registry:




Now you can delete the Office key.

Step 6- Delete your Start menu shortcuts.

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

In conclusion, the steps should be a detailed guide for you to fix all of those issues. But, if they still fail, then here we are at the next solution.

Solution 4- Download and install a new Office Suite

This is your final and the last resort to resolve this issue. 

Follow the steps below to get  your Microsoft  loading:

Log in to your My Account page. 
Choose the option that allows you to Install.
Tap on Run or the equivalent depending on the browser you’re using.
Once you see “You’re good to go,” click All done.
If the error persists, you may contact the Help desk for further assistance in troubleshooting error code 0x426-0x0.


The Microsoft error code 0x426-0x0 is an office suite problem that can be solved in three ways. You have the option to repair, remove, or even reinstall. Your choice of action should be dependent on your device and how dire the issue is. But, they all can get the error out of the way.

In all, you can fix the problem via the various solutions I outlined for you. If they all don’t work, you can reach out to the support center to get the necessary information. Or you could simply restart your whole computer and get rid of the problem.