Windows operating system is a very useful and easy to operating OS. You can get many features in the Windows computer to complete your personal or professional tasks. Sometimes you need to install newer version of Windows over the old one. When you try to install Windows 10 over the older version of Windows OS, you may get Windows 10 installation error 0xc00000e9. Occurring of the error issue in computer is a very critical issue that happens due to corruption in the hard disk. You should go through some manual or automatic fixing method to fix installation error 0xc00000e9 in Windows. You can use Advanced System Repair tool to fix the issue automatically.