Hello,
There is multiple articles and video available to assist in the migration process. You can check the below documentation and video listed below:
https://library.netapp.com/ecmdocs/ECMLP2440302/html/GUID-D7B62E68-C7EA-42B9-8E2C-98B7BFE0E14C.html
https://www.youtube.com/watch?v=Fx-m6dr8LP8
You will not be able to run it in parallel as it will require to uninstall Snapdrive and any Snapmanager product when transitioning to snapcenter.
The document above is for Snapcenter 1.1, the latest version is 4.3.2. You will need to verify which version by checking compatibility with windows and Ontap environment.
Thanks