Thank you for posting your query in the Microsoft Community. You seem to have an issue with installing Windows on the computer. We can get this issue fixed by proceeding systematically. It might be frustrating for you. But, rest assured we are here
to help you.
Let us start with a few questions-
1)Do you get any error code?
2)Are you trying to install Windows through the DVD or a different removable media?
3)Have you made any hardware or software changes on the computer prior to the issue?
I would like more information regarding the issue.
It is possible that the source that you are using to download might be corrupt or damaged.
I would have you download and install the latest Windows Installer utility.