before bothering around with darktable profiles use the profile you got to get your system (windows) to use this profile for display.
Then the simply use system default profile in darktable for your display and you‘re fine.
If you’re not that experienced with administrating your system, then better don’t copy stuff into system directories you don’t really know. Windows provides the tools to guide you to do it:
For historgram, workspace etc.pp. stay with the defaults unless you have a specific use case like: preparing output for print services
In the mean time read what you can get on color profiled workflow so you get an idea why you want to deviate from the standards.
Using profiles someone told you without understanding the why is the best way into trouble 