I know people here are saying they can get BW to work with Win10 without an issue, and all I can say is great for them.
Unless you do a lot of tweaking to get around a serious .NET runtime issue, graphics driver issues (in my case Nvidea), and tons of other stuff in the latest Windoze, you are SOL.
Downgrade to 8.1 or 7 even and you are golden.
You COULD try to install DirectX9 and see if that fixes it for you. But from personal experience Win10 is not compatible with BW. You will experience a lot of crashes, speeder crashes and others. Simply not worth it. Maybe I am wrong, but that has been my own experience with Win 10 and BW on a fairly new system.
Then again, your issue sounds different from my experience and without more information it is impossible to even try and help.