Ways to Fix Windows Defender Error 0X800705B4

The error code 0x800705b4 commonly comes up on Windows versions causing your computer to slow down and eventually even crash. The error comes in the form of the message ‘Error 0x800705b4 application failed to initialize’.There were problems in installing updates.

Common Causes Of Error Code 0X800705B4

Here are some of the common causes for the error code to occur:

·       0x800705b4 error is caused by Windows Defender updates

·       When Windows system files are damaged or the system is corrupted

·       When the update service in the computer is not configured as automatic update

·       Virus or Malware can also cause this error on your Computer

·       Faulty Registry entries


Here are some common methods to fix this error code. You can go step by step and see if it resolves the issue.

Solution 1: Run Windows Troubleshooter

Take the help of Windows troubleshooter to fix this error code. It can identify and fix existing problems automatically after being launched.

1.       Go to Start and type, ‘Troubleshooter’ in the search box

2.       Click on Find and Fix problems

3.       Follow the given commands

4.       Check if the error is now resolved.

Solution 2: Disable Third Party Antivirus And Malware

1.       Click Start, and select Control Panel

2.       Click on Uninstall a program under programs

3.       In the list of installed programs, locate and then click the program that is faulty

4.       Click Remove

5.       Restart computer and check if the error is resolved.


Solution 3: Set The Windows Defender To Automatic

1.       Go to ‘Start’

2.       Type, ‘Services.msc’ in the search box

3.       Click on services on the program list

4.       Type the Administrator password and then click to Continue

5.       Double click on Windows Defender

6.       In the startup box, select Automatic

Solution 4: Update The System

1.       Click on Start button

2.       Select Control Panel

3.       Go to Systems and Security and click on Windows Updates

4.       Click check on Updates, download and install updates

5.       Restart computer and check if the error is resolved

Solution5: Run SFC Scan For System

SFC enabled Windows users to find corrupted Windows system files and repair them

1.       Start Command Prompt and then click the Start button and type cmd in the search box

2.       Right click on the icon and choose to run as Administrator

3.       Type the command sfc/ scannow and press Enter

4.       Allow the commands to run and then close it

5.       If the process is successful then you will get the following message:

‘windows resource protection found corrupt files and successfully repaired them’

‘windows resource protection found corrupt files but was unable to fix them’

6.       Let your system scan and fix the issue

7.       Once done, restart the computer.