In your Windows computer, you may install many applications and programs as per your requirements. But Microsoft also gives you some amazing features in the Windows computer by default. In the latest version of Windows 10, you may see Windows defender. It is an inbuilt antivirus program in Windows 10 that is responsible for scanning the computer to remove virus infections. But sometimes when you try to launch the program in the computer, you get Windows defender error 0x8050A005 on the display. The defender error code 0x8050A005 comes to your computer due to deletion or missing of important system files. You will not be able to scan the computer now. Therefore, you can use the error troubleshooting methods recommended here in the article. For automatic fixing you can download and install Advanced System Repair Tool in the computer.