Unable to downgrade NI CVI RTE Software from v2017 to v2010SP1

[nfie...@gmail.com]

I am using software created by our company in the past. The software support has been discontinued, there is no active development for it. The software relies on the National Instruments LabWindows CVI v2010SP1 (the installer is nilwcvirte2010sp1.exe and there is a patch NISU_KB5Q5FJ4QW_PatchSP1.exe). If we install the more recent version NILWCVIRTE2017.exe, the software will crash. I uninstalled the files "NI LabWindows/CVI Shared Runtime 2017" and "NI LabWindows/CVI SxS Runtime 2017"), using the command c:\Program Files (x86)\National Instruments\Shared\NIUninstaller\uninst.exe /ignoredependents and then I reinstalled v2010SP1. But the software still crashes. In the past I also uninstalled NI software completely, but I was still unable to restore NI LabVindows CVI v2010SP1 properly.

When I spoke to our developers about this problem, I've been told that the only solution they know is to reimage the Windows OS (we are using Windows 10, 64 bits). I would like to avoid doing that because I have to install a lot of software, edit many configuration files, restore folders with settings and correction factors, etc.

Could you please advise if there are any files or settings that I need to delete or edit in order to bring v2010SP1 to its former glory?

Thanks,
Nick