This will first download a small executable.Click on the “NI Downloader” link under the “Download Options” section.One solution to this problem is to use an Ethernet cable, but if you have unreliable internet, and using a cable is not an option, you should download Multisim from this link. This is a very common problem for people who have unreliable Wi-Fi connections that provide slow speeds and drop the connection intermittently. The most common reason that a download is corrupted is due to unreliable internet connections on your computer while you are downloading the file. This does not necessarily mean the download from our server is corrupt. In this situation, the most likely issue is a corrupt download.
Sometimes, this error can occur even after the ZIP file has been extracted and you attempt to run setup.exe. The ZIP file is not always the culprit of this error.