0x80070015: How to fix the error?

The code: 0x80070015 appears on the screen when the user is facing some issues while updating Windows or downloading a program on the System. The error code means that the system is not ready to use. You should fix the error immediately so you can work on the system reliably.

Reasons behind Windows Defender error code 0x80070015:

1.    Corrupt Windows update installation
2.    A third-party program is interrupting the process
3.    Scanning empty drive
4.    CBS.Log files are interrupting the update installation
5.    Corrupted System files

Best techniques to fix Windows Defender error codes:

Retry to install Windows latest update

If the user is getting error code 0x80070015 while installing the update or new program; retry to install the update. Close the Windows error wizard and then restart your PC. 

1.    Go to the Settings tab on Windows PC
2.    Navigate to the Update & Security button
3.    On the right pane, tap on the Updates button

Now you have to wait until the Windows updating process gets installed. The new Windows update will start downloading in the system. If the update installation process interrupts and you again face the same error code then you should seek other solutions.

Uninstall all the third-party software

The PC can show up in installing the program or update due to some third-party software. Sometimes, users have installed a third-party program that is malicious. The malicious program on the system can interrupt various system processes. Users often install free third-party tools like gaming or editing software. When you get into an error; check for the third-party programs and uninstall them immediately. 

1.    Go to the Windows 10 device and tap on the Start button
2.    Select the Setting tab
3.    Choose the Apps tab
4.    Now check all the programs 
5.    Right-click on the third-party program 
6.    Tap on the Uninstall button 

After uninstalling all the third-party programs from the system; restart your Windows device and now try to install the software.

Try renaming the CBS.Log file

The Windows Defender-related error can also appear due to the CBS.Log file. Whenever the Defender-related error appears; check the CBS.Log immediately. Editing the CBS.Log file may fix your error code. But few users face errors while editing the CBS.Log file. Follow the steps before editing the CBS.Log file:

1.    Open the Run bar on the system
2.    Type services.MSC
3.    Hit the Enter button
4.    The Services window will appear on the desktop
5.    On the Windows Modules Installer service page
6.    Change the Startup type to Manual
7.    Tap the Apply button

Now restart the system and try to edit the file. After renaming the CBS.Log file; check whether your Defender error gets resolved or not.

Uncheck the empty drives

The Defender error can occur due to the drives. While running a custom scan with Windows Defender; check the drivers. Do not select the empty drive during the custom scan. Also, uncheck the UB flash while scanning the system. Now restart the Defender custom scan and check for the error.

Repair the corrupted system files

Corrupted Windows files can lead to Windows Defender error codes.  These are very crucial files for the system and very complicated to edit. If you can’t edit the files manually then use the file check tool instead of editing manually:

1.    Open the Run bar and type cmd
2.    Press the Enter button
3.    Windows Command prompt will appear (you will require admin credentials)
4.    Type SFC/scannow on the command screen

Press the Enter button and the file checker tool will take some time (around 10-15 minutes) to scan the corrupted files. After repairing the system files, restart the computer and check for the Defender error.