In the Windows operating system, you will see many services or features. You will also get the updated version of Windows as well as other components time to time. These updated components will help you to work on the computer flawlessly. But problem comes to you when they give you some error issues due to unwanted happenings. While you try to launch the Windows defender feature in computer to scan the whole system, it will give you Windows defender error 1168. Occurring of the defender error code 1168 is a very critical issue and you must get rid of it as soon as possible using the manual or automatic error fixing methods. You can fix this issue automatically by using the Advanced System Repair Tool in the computer.