How to fix Microsoft error code 0x426-0x0 0x0

Last Updated on November 20, 2021 by David Baddeley

Microsoft Office plays an integral role in the computing lifestyle. Recent pandemics have required individuals to complete tasks from the comfort of their home, and the Microsoft ecosystem is gaining in popularity.

Microsoft Office has an impressive list of products that you can buy or subscribe to. These are on-demand products such as MS Word, Excel, PowerPoint and OneDrive. All of this has helped many individuals increase and promote productivity.

Despite the popularity of Microsoft products, users are still experiencing problems. Sometimes an error. If you are new to the Microsoft world, error codes or glitches during the installation or update of MS Office can be even more confusing.

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

Recently, some users have expressed concern about the problematic error code 0x426-0x0, which prevents Microsoft Office from completing the installation or performing updates. This issue occurs for several reasons when installing or updating Office apps for the first time. Causes include poor network connectivity, strict third-party antivirus security tools, system file errors and corruption, and firewall rule conflicts.

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Fortunately, there are several proven solutions to this problem and we are trying to lay them out for you. Before that, there are certain things that need to be emphasized. These problems rarely occur, but they occur on computers that are not clean and have many stability issues. Therefore, if you experience such problems on your system, it is recommended to install a reliable PC repair software tool. Doing so eliminates stability issues and cleans up.

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Cause of Microsoft error code 0x426-0x0 0x0

Microsoft error code 0x426-0x0 can occur for a variety of reasons. When a user attempts to install or update a Microsoft Office app, this error code is displayed, preventing the action from completing. Causes of this issue can range from strict antivirus to system file corruption, registry corruption, and MS Office application corruption.

Microsoft error code 0x426-0x0 0x0 fix

There are many causes for this issue, so we have summarized some fixes that can be applied depending on the type of issue. If you do not know the cause of the problem, it is recommended that you apply these fixes in chronological order.

Fix # 1: Disable or uninstall antivirus

Strict third-party antivirus software suites can lead to errors Code 0x426-0x0. As a safeguard, security software can block installation or communication with external servers for updates. These rules are implemented in the core settings of the security tool.

Therefore, the best way to determine if a third-party security tool is the cause is to temporarily disable the program. Once that’s done, you can try installing or updating the MS Office app to see if it’s causing a problem. If not, you should uninstall the security suite and consider changing to a trusted antimalware utility.

Fix # 2: Run SFC scan

Error code 0x426-0x0 can be caused by an inconsistency in the system files. In that case, running an SFC scan will help resolve the issue. System File Checker leverages the cached copy stored in the directory to replace or repair a corrupted system file copy. Here’s how to launch SFC Scan:

Press the Windows logo and R key at the same time to launch the Run dialog and access the promoted command prompt.

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Enter cmd in the text field. (No quotes), then press Ctrl + Shift + Enter at the same time. When prompted by the User Account Center (UAC), click the Yes button to grant administrator privileges.

Then, inside an elevated command prompt, insert the line below and press Enter.
sfc / scannow

Wait for the process to complete. Close the command prompt window and reboot the system.

At the next boot, install or update MS Office to see if the error has been fixed.

Fix # 3: Repair the registry

This issue can also occur if there is an error in the registry key value. Error code 0x426-0x0 can occur if a single key-value is corrupted or accidentally modified. Therefore, to fix the problem if it is a scenario, the string value needs to be repaired and rebuilt. Because it deals with sensitive components of the system, it is recommended that you back up the registry before starting the repair process.

To repair the registry, follow these steps:

Launch the Run dialog to create the Registry Editor, as shown in Step 1 of Access Fix # 2.

Type regedit (without the quotes) in the text field and press Enter. Click Yes when prompted for UAC.

Then delete the existing registry associated with MS Office. As a guidance, be sure to remove the following keys:
HKEY_CURRENT_USER \ Software \ Microsoft \ Office \ 11.0
HKEY_CURRENT_USER \ Software \ Microsoft \ Office \ 12.0
HKEY_CURRENT_USER \ Software \ Microsoft \ Office \ 14.0
HKEY_CURRENT_USER \ Software \ Microsoft \ Office \ 15.0
HKEY_CURRENT_USER \ Software \ Wow6432Node \ Microsoft \ Office \ 11.0
HKEY_CURRENT_USER \ Software \ Wow6432Node \ Microsoft \ Office \ 12.0
HKEY_CURRENT_USER \ Software \ Wow6432Node \ Microsoft \ Office \ 14.0
HKEY_CURRENT_USER \ Software \ Wow6432Node \ Microsoft \ Office \ 15.0

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When you’re done, change the value of DWORD to 1.

After rebooting the system, the error was fixed by repeating the action that triggered it.

Fix # 4: Reinstall MS Office App

Removing and reinstalling the Office suite is useful if you are having problems due to a failed installation procedure. This allows you to get a new copy of your app and automatically fix problems using the broken application. Here’s how to do this:

Right-click the Start menu and select Apps & Features from the options list to access the Apps & Features window.

Then go to Microsoft. Office in the list of installed programs and features.

When you find it, click it and select Uninstall. Follow the prompts to complete the uninstall procedure.

Reboot the system when you are done.

The next time you launch it, go to your Office account page and download the MS Office suite.

To prevent Office Suite apps from being corrupted or damaged, do not turn off your system, disconnect from the Internet, or manually restart during the installation process.

Note that these fixes only work if: There is a legitimate copy of the MS Office suite. This error can also occur if Microsoft determines that the copy you are trying to install or update is pirated. In such scenarios, it is best to request a refund from the dealer and get a legitimate copy from a trusted vendor.

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