Very hard to get it working on Win10, but got there in the end. Fiddly to use on a laptop and I already tripped over a bug that saw Geralt ge stuck withn a wall..
For anyone considering the original Witcher geame be aware that you will need to install using the PC's admin account and then will need to install patches 1.4 and 1.5 to get it running. The upgrade links are broken, but googling wll locate the patches.