it says :
NSIS ERROR
the installer you are trying to use is corrupted or incomplete.
this could be the result of a damaged disk, a failed download or a virus.
you may want to contact the author of this installer to obtain a new copy.
it may possible to skip this check using the /NCRC command line switch (NOT RECOMMENDED)
maybe solution is easy but i can't figure it out so any help would be highly appreciated !
file downloaded from videolan.org