Windows is a very easy to use operating system in the world. You can run so many applications on it and access them as per your requirements. It is also one of the most reliable operating systems in the world. It gives you some updates time to time while your PC is connected with internet. But problem comes when you try to install updates for your Windows and it gives you Windows update error 0x8007007A. You will not be able to install any updates after this happening. So, go with some manual or automatic methods and fix Windows error code 0x8007007A. You can also use Advanced System Repair tool for automatic fixing of the error.