There are many error messages; you may get in the Windows computer while you are working with some applications or files of it. When you go to install updates for Windows, you may get Windows update error 0x8007f020 in the computer. It is really a very critical error issue that happens mainly due to incorrect registry entries or due to misconfigured system files. You may get the Windows error 0x8007f020 with so many symptoms like slow performance, automatic shutdown, repetitive restarting, BSOD errors, etc. You should fix Windows error code 0x8007f020 with the help of some manual or automatic error fixing methods. For automatic troubleshooting, you should use Advanced System Repair tool in the computer.