Windows 10: Windows 10 installation failure

I tried to downloaded windows 10 on my windows 8.1 single languageactivated,after successfully downloading windows 10by clicking the option upgrade this pc now it verified the download and started to check for updates. After that it asked for installing windows 10 and I clicked to install it. But on reaching 74% it suddenly gone and showed an error message "windows 10 installation has failed" in a small dialog box.Can you suggest what should I do next to install it? Is it needed to download it again? Or is there any option to install from the already downloaded file?I downloaded it using

:)

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx

 

Is it time for Windows 10 already?

Here's a good step by step guide on doing a fresh install.

How to clean install Windows 10 from a USB drive - Software - Feature - HEXUS.net

 

Installing Windows 10 on New PC?

I'm going to be building a new PC on Christmas and want to install Windows 10 on it. I have Windows 10 on my current PC, which I installed upgrading from 8.1 with the files on a USB. How do I go about installing a clean copy of Windows 10 on this new PC? I think I recall something about installing it once makes Microsoft recognize your hardware, but since this will be a PC I'm not sure what steps I need to take. Do I need to go 8.1 -> 10 or is there a method of going directly to 10?