Whenever I download a large file (~60mb+) and I try to run the program, I always get this error:

nsis_error

I asked someone to download the same files (xbmc for example) and they didn’t get the error. Trying some options suggested (save it on a different disc).
Was this hardware related or ISP problem?

Update:

I downloaded the file to a different disc but I still have the error. Tried scanning (full, thorough scan, avast pro) but there were no virus of spyware found. Will try to test memory.