The problem is download stops in between and even though it ishows resumable we cant resume it. when we try to resume
it suggests us to download it again from the start.
Here is the soln
i suggest you to use internet download manager (idm) becoz it works with idm and its speed as well
when u face such problem
1)In such case cancel the download and go to the page from where u downloded the file .(just cancel dont delete it from Idm because u are gng to rseume the same file).
2)Now the site is opened click on download
idm download window is shown
Here is the imp step
3) In idm download window u will see adress tab
copy the address link from there and cancel the download.
4)Now open idm select the properties of the file(which couldn't be resumed) and replace the address link with the new one which u had copied and click ok
5) Now try to resume it.
and for idm best way is to use a trial version when ur trial version expires just uninstall idm with iobit uninstaller and go for a powerfull scan
after powerfull scan install the latest version.
sorry for my english
hit thanks if it was helpful