However, in about 10% of Windows 10 upgrades, something goes wrong and Windows Defender cannot replace Microsoft Security Essentials, resulting in both Microsoft Security Essentials and Windows Defender being present on the installed operating system. In such cases, Windows Defender cannot be started, which basically means that it does not provide any protection to the computer, and even though Microsoft Security Essentials is always active, both the spyware and unwanted software protection and the antivirus protection are disabled. We have mentioned steps below to Repair Windows Update Error 0x80070426

Ways to Repair Windows Update Error 0x80070426

Running an SFC Scan

Checking if there are Software Conflicts

Running the Windows Update Troubleshooter

Windows Key+I on your keyboard. The Settings app will open when you do this.After opening the Settings app, select Update & Security.Select Troubleshoot from the left-pane menu now.Click Windows Update in the right pane.To start the troubleshooter, click the button.To fix the update problems, according to the troubleshooter’s instructions.

Final Words

We hope like our article on how to Repair Windows Update Error 0x80070426. Microsoft Security Essentials has been superseded by Windows Defender in Windows 10 and is no longer available. Additionally, an error warning can appear when you try to launch Windows Defender after upgrading from a previous version of Windows 10: “The initialization of the programme contained an error. Please get in touch with your system administrator if this issue persists. 0x80070426 is the error code.

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