However, I have not yet tried uninstalling all my NI stuff just yet. I killed that process and I was able to uninstall my software. It turns out there was a Windows installer process running even after a reboot. So, I did as the article you pointed to instructed and checked the processes. But, because I had rebooted the computer, I assumed that this was not the case. Originally I had thought of an installer process running in the background somewhere. But that will kill at least a day to reimage and another day to reinstall everything to get back to normal. I could turn my PC over to our IT department to image the hard drive and start over. I tried repairing, as suggested in the linked post, I also get the error 1618. I get the error 1618 and nothing uninstalls.

I tried uninstalling all of the NI software through control panel. I get a message indicating that something is already in the process of installing and I should wait until it is done. I tried uninstalling my executables through the control panel. My LV2012 environment seems to work fine except that when I try to close it, it won't close. They simply crash and give me an option to send a report or not. But since that time, my executables built in LV2012 won't load. Now, I can't say for sure that this is what caused my problem as I did not try running any of my newer applications or LV2012 immediately after this. The application seemed to work and when I was done with it, I uninstalled it. I recently installed a very old executable application that was built in LabVIEW6. I have several version of LabVIEW installed (8.5 through 2012) as well as NI-VISA, NIDAQmx and 488.2.

Error 1618 windows 10