Can't reinstall Sonar X3

I sent this story to tech support, but they didn't have a category that related to it. I will see what they think, but I decided to post it here as well in case anyone else has gone through this and has a solution.
 

My i7 PC quit on me. It had issues for 10 years. The hard drive is a year old. As far as I can tell through a long history of dealing with this, I think that the Asus P6T motherboard was the trouble maker the whole time.
Anyway, I bought a new i7 PC with a SSD and IDE drive and 16GB memory. It's pretty cool. 
I loaded all of my software including Sonar X3. I installed my Firewire card and connected my RME Fireface 400.
 
I loaded my old PC's hard drive into an external drive enclosure and told Sonar to open one of my current projects from the external drive.
 
Sonar told me that some of the audio paths were not available and gave me alternatives. I clicked ok and the PC began to emit a high pitched sound. My headphone amp volume was up loud. It was an unwelcome event. I closed Sonar and reopened it and it was still making that noise when I opened the file. I could not locate where to reset the change that Sonar made, so I closed it.
 
My spur of the moment brainstorm was to simply uninstall Sonar and reinstall it to start from scratch. In hindsight, that was really stupid and should have just done more research, but I wanted the fastest solution to get back to recording. I used the Windows 10 uninstall to uninstall.  Sonar has its own unique uninstall procedure that I found out about later. Too late.
 
Unfortunately, when I try to reinstall Sonar X3, the new Windows 10 PC doesn't like it and it reboots. I am assuming that when I first installed Sonar and it made registry changes, it removed things that Sonar is now looking for and can't find during the re-installation.
 
Aside from having to start completely over with a clean install of the OS ( and  I don't have a Windows 10 pro disk) , I don't think I'll be able to reinstall Sonar X3.
Does anyone here have any problem solving insight to get past this?

It's not installed. I can't get past the first few seconds of installation after the files are unpacked. I think that the first installation made its necessary system changes. Most things seem to have been operational, but I had the one issue described above. Then I uninstalled to try with a clean slate and I tried to reinstall Sonar a 2nd time. . I think that when I try to reinstall, Sonar is looking for files that it needs to change but that are no longer there because Sonar removed them the first time around. I think that is what is causing the system to reboot. I just need a workaround, if there is one, to get Sonar reinstalled, hopefully without first reinstalling the Windows 10 pro OS.

I have 64bit X2, X3 and the current SONAR installed on Win10 v1703. They all seem to work OK. X3 is out of support and the final version of the product was released prior to W10 but I do not believe that is the problem. There are reports of users running pre-X series versions of SONAR on Win10.
 
I wish I could be more help but there is so little to go on in the OP. Here are the clean install instructions for X3 and the clean install instructions for All Cakewalk products. Be aware the latter includes an instruction that completely removes the default VST folder. This may be a problem if 3rd party plug-ins have been installed in the Cakewalk default VST folder. All the registry changes made by Cakewalk reside in the areas discussed in those knowledge base articles.