Hello,
Welcome to the Microsoft Community and thanks for posting the question. As I understand, you’re unable to download the trial version of Office 2010, as it quits half-way through the download. Let me help you out here.
I have a few questions for you:
1. From where exactly are you trying to download Office 2010?
2. Which web browser do you use? (Internet Explorer/Chrome/Firefox)
3. Are you using a wireless internet connection?
4. Do you get any error message when the download fails/stops?
Ensure that you download the Office 2010 trial from the Microsoft link given below. Use the ‘Save’ or ‘Save As’ option to save the setup file onto the computer, and then run the setup (.exe) from the saved location.
http://office.microsoft.com/en-us/try/
If you use a wireless internet connection, try switching to a wired connection (if available), and then check if the Office 2010 trial download completes without being interrupted.
Also make sure that you have Internet Explorer (IE) set as the default web browser, and use IE to download Office 2010. Refer the link for more information:
http://windows.microsoft.com/en-GB/internet-explorer/make-ie-default-browser#ie=ie-10
Hope this helps. Let us know the status and provide us the additional details if the issue persists. Thank you.