I've deleted literally every single National Instruments folder from my hard drive that I could find and then reinstalled. I've tried forcing reinstallation via the command prompt (~4 times). I've tried repairing the installation (~5 times). I've tried uninstalling and reinstalling (~15 times). Use add or remove programs in the windows control panel to attempt to repair this problem.' Now I got an error saying the following: 'The installation of this application may be corrupt. Still wouldn't start, but different error message (I assume I fixed the dll problem). Found the dll from an Oracle folder on my computer and tried to start Multisim again. By not starting, I mean that I would open Multisim from my start menu, and as soon as the Multisim startup screen displayed, I got an error and Multisim would close. Cloned all the data from HDD to the SSD and then Multisim wouldn't start.

I recently bought and installed an SSD to replace my HDD. And I have a CD that I installed the program with. So, I've had Multisim 12 for a while and it's always worked fine.

Multisim 12 student updtae