Fix Windows Defender Error 0x800705b4

 Windows Defender Error 0x800705b4

Windows Defender is the built-in anti-malware software present in all the latest Windows computers. This anti-malware tool itself is enough to protect your Windows computer from all kinds of threats. But, some Windows users have encountered an error 0x800705b4 with the Windows Defender application. If you have installed another third-party security software on your Windows computer, then there is a chance for this error to occur. To solve this Windows Defender error 0x800705b4 , try some of the solutions mentioned below.

Method 1: Disable the third-party security software

  • On your Windows computer’s taskbar, locate and right-click on the security application’s icon.
  • Select the option similar to Disable or Turn off and follow the on-screen instructions.
  • Now, check if the Windows Defender error code 0x800705b4 is resolved
  • If not, try the next method discussed below.

Method 2: Turn on or enable your Windows Firewall

  • To perform this method, go to your computer’s Control Panel section.
  • Select the Windows Firewall option followed by Customize Settings.
  • Now, a window titled Customize settings for each type of network will open.
  • Locate the Turn on Windows Firewall option below the Private network settings and Public network settings sections.
  • Click the OK button.
  • Now, search for msc in the search field.
  • Right-click on services.msc from the search result and select Run as administrator.
  • Now, in the Services window, locate and right-click on the Windows Defender option and click the Start option.
  • Check if the Windows Defender error 0x800705b4 has been resolved.

Method 3: Run SFC

  • Run SFC on your Windows computer by following the instructions given below.
  • Open the Command Prompt application.
  • Type the command sfc /scannow on the cmd screen and press the Enter key.
  • Wait for the on-going process to complete.
  • It is better to run SFC at least 3 times.
  • After that, check if the Windows Defender error 0x800705b4 is resolved.
  • If not, contact us.


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