\nIf installation files go missing or become corrupt, it will be impossible to start any program. In this case, the files of the app you’re trying to launch might be the affected ones. It’s also possible that all the Office have gone bad. This might have happened due to a problematic shutdown or virus infection.<\/p>\n
There are other reasons that could explain the situation, but what’s important is to replace those damaged files<\/a>.\n<\/p>\n \nThe Click-to-Run service is critical for streaming Microsoft updates while the program is running. Disabling the service might trigger the error.\n<\/p>\n \nA previous Microsoft Office installation might be conflicting with the latest version. Are you one of the users who like to enjoy the features of two different versions? If you are seeing the error, then this might be the issue.\n<\/p>\n \nAntivirus and firewall<\/a> programs often block legitimate processes that they consider to be threats.\n<\/p>\n \nSoftware conflicts are another issue to be looked at. Some third-party applications or services might be interfering with the Office process, causing the error to appear.<\/p>\n We’ll be showing you how to deal with these issues to get rid of the problem.\n<\/p>\n \nTo get rid of the error code, you have to resolve every underlying issue. The solutions in this article have helped many users remove the error message for good.<\/p>\n So, follow the fixes one after the other.\n<\/p>\n \nSince faulty installation files are one of the reasons for the problem, fixing them is one way to go about getting rid of the error. For many users, this was the effective solution.<\/p>\n There are two main ways to repair Microsoft Office. You can go through the Control Panel or through the Settings app.<\/p>\n If your Office installation is Click-to-Run-based, then using the Apps and features section of the Settings app is the right thing to do.<\/p>\n The steps below will walk you through the process of repairing Office via Settings.<\/strong><\/p>\n If your Microsoft Office is MSI-based, you’ll see the Change your installation<\/em> dialog instead. If that’s the case, click on Repair<\/em>.\n<\/p>\n Follow these steps to use the Control Panel:<\/strong><\/p>\n \nThe Click-to-Run service is a technology that helps Microsoft Office install faster. It’s mainly used to deploy Office updates. The service makes it possible to continue using your applications while the updates are being implemented. It facilitates the download and installation process in the background and allows you to get on with your job without disruptions.<\/p>\n The service has to be enabled to perform its functions. If it’s turned off and Office needs to install certain updates, you won’t be able to run any Office program as normal. So, if you’re still seeing the error code 0x426-0x0, go to the Click-to-Run service and make sure it’s functioning.<\/p>\n The following steps will show you what to do:\n<\/p>\n \nIf you still see the error code, head to the next solution.\n<\/p>\n \nFor some bizarre reason, the error code might be appearing whenever you try to launch an Office application because your antivirus program is interfering with the process.<\/p>\n Normally, antivirus programs take action when they sense a threat. That’s what makes this odd, because Microsoft applications are generally safe.<\/p>\n Before resorting to turning off your antivirus, consider preventing it from interfering with Microsoft’s processes. To do that, you have to add the installation folder of Microsoft Office as an exception.<\/p>\n In some security programs, the exception feature can be called Exclusions<\/em> or Exemptions<\/em>. Meanwhile, in others, you have to look for the Whitelist<\/em> or Safelist<\/em>.<\/p>\n If you don’t know how to add an exception (or exclusion or whitelist, as it’s called on other programs), go to the website of your antivirus to find a guide.<\/p>\n The steps below will show you how to add Microsoft Office as an exclusion in the Windows Security application:\n<\/p>\n \nIf that doesn’t solve the problem, disable the antivirus program. Follow these steps:\n<\/p>\n The program can work alongside your main antivirus application and cover for it while it’s turned off. It also doesn’t cause conflicts with legitimate programs as other antivirus applications.<\/div>\r\n \nAVG TuneUp is a PC optimizer that is advertised to clean up junk from the system and make it run faster. According to some users, the tool can do some damage. It tries to reduce the load on your CPU and boost your system’s speed. With this, the program might put some Office components that run in the background to sleep. Consequently, it causes the error to occur when you try to start a program.<\/p>\n As it turns out, some users uninstalled it, and everything began to run smoothly. So, if you use the AVG TuneUp application, uninstall it and check for the issue.<\/p>\n The guide below will show you how to do that:\n<\/p>\n Also Read: <\/strong>So Easy to Do: How to Uninstall Programs and Apps on Windows 10\/11?<\/a><\/p>\n \nYour firewall program is another protection app that you have to look at. As you know, Microsoft Office often connects to the Internet when it’s updating or if it needs to fetch files that you saved to OneDrive<\/a>. The application could also access Microsoft servers to confirm that your license is still valid.<\/p>\n If the firewall blocks its access, then you might have a problem on your hands. This is often the cause of the error code.<\/p>\n So, to solve the issue, the straight solution would be to disable the firewall so that it doesn’t block the program. However, that might be a nuclear option that would allow your system to be compromised. The safer thing to do will be to allow Microsoft Office through the firewall. You can also allow the Click-to-Run service to make sure it isn’t being blocked.<\/p>\n There are different ways to let a program through the firewall, depending on the application you use. If you use a third-party program, you can check out how to do that by going to the website of the app’s developers. If you use the Windows Defender<\/a> Firewall, however, these are the steps that you should follow:\n<\/p>\n\n
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How to Fix the Microsoft Office Error Code 0x426-0x0<\/h2>\n
First fix: Repair Office<\/h3>\n
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Windows and R<\/code> keyboard buttons together.<\/li>\ncontrol panel<\/code> into the text box and hit the Enter<\/code> button.<\/li>\n![\"Click](\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2018\/04\/Uninstall-a-program-via-control-panel.png\")
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Repair<\/em>\" class=\"lazyload screenshots__image\">\r\n <\/div>\r\n Second fix: Enable the Click-to-Run service<\/h3>\n
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Windows and S<\/code> keyboard buttons simultaneously or by clicking on the magnifying glass in the taskbar.<\/li>\nservices<\/code> into the text box.<\/li>\n![\"Microsoft](\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2024\/08\/5.png\")
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Third fix: Add Microsoft Office as an exception in your antivirus<\/h3>\n
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Fourth fix: Uninstall AVG TuneUp<\/h3>\n
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Windows and R<\/code> keyboard buttons together to open Run<\/em>.<\/li>\ncontrol panel<\/code> and press Enter<\/code>.<\/li>\n![\"Locate](\"https:\/\/www.auslogics.com\/en\/articles\/wp-content\/uploads\/2024\/08\/14.png\")
AVG TuneUp<\/em> application, click on it, and then click on Uninstall<\/em>\" class=\"lazyload screenshots__image\">\r\n <\/div>\r\n \n
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\nFifth fix: Allow Microsoft Office through your firewall<\/h3>\n
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