If you install Windows 8 yourself instead of buying a new PC, you may encounter the error message “Windows 8 installation failed.” The annoying thing about this problem is that it is a general installation error and it can be very difficult to determine the specific cause of the problem.
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How to Fix “Windows Could Not Complete the Installation” Error Problem on Windows 10/7/8
Fortunately, there are several things you can do to resolve the issue and successfully complete the Windows 8 installation before you need to contact Microsoft Support:
1. Hardware driver compatibility: Before attempting to upgrade or reinstall Windows 8, be sure to run Windows Update and check that you have all the latest updates installed. Also, visit your device manufacturer's website and check if new hardware drivers are available.
If you have peripherals such as a printer, external hard drive, Bluetooth keyboard and mouse, or any other device, unplug all of them before attempting to install the new operating system. Disconnecting a secondary internal drive may also help.
