Hello, I've already had the problem, in fact in "regedit" the software keys are not good. As @AC cobra says: " try a repair of the software" but without conviction that it will work. because it seems to me that my computer must have been formatted because I had several problems...
How did you do your migration: installation of a new version (keeping the old one) or version update? (I don't have the exact terms in mind anymore)
Just a remark about the KB3072630, it needs to be installed. Simply, you have to disable it before the installation operations and then reactivate it. There are 2 files on the SW site to launch (see PJ)
Question that comes to mind, did you disable the antivirus to do the update? because it may be that otherwise it is blocked some files that it considered "potentially dangerous"!
And deleted all SW files... Show a search in the explore on C and if there are still any; delete them and there again a Ccleaner and then reinstall it.
SOLIDWORKS 2015 SP5 and SOLIDWORKS 2016 SP0 software will support Windows 10's 64-bit Pro and Enterprise .
SOLIDWORKS 2014 will not be compatible with Windows 10*
- UPDATE (October 10, 2015): SOLIDWORKS 2016 SPO has been released by Dassault Systèmes and this is compatible with Windows 10.
* The following SolidWorks products are not supported on Windows 10 : SOLIDWORKS 2015 SP4, SOLIDWORKS 2014 SP5, and all other previous versions and service packs. This applies to all products (i.e . eDrawings, Enterprise PDM, SOLIDWORKS Composer, etc.)
I know that officially it's not supported and that I risk bugs. But after 3 uninstalls/installs on Windows 7 the result is the same! So I'm staying at windows 10 and too bad...
If by chance someone manages to solve this problem I'm interested :)