Sorry to hear you are having issues. All Windows 7 theme should also work on Windows 10. If you have saved all the ".wba" files somewhere, you can reload those by double clicking it once Windowblinds is installed. If you don't, than you'll need to download it again.
If your Windows 7's Hard drive still working, you can always do a ".wba" search on it. or try to look for "C:\Users\Public\Documents\Stardock\WindowBlinds"
Stardock Community Assistant.