Hey also team, if it looks like atom isnt reading ghci. Or if it still doesnt work after the above fix,, changing the permissions for ghci in command prompt worked for me :))
Love y'all, never give up trying to install!!
"Try running GHCI with system administrator permissions (type "Command Pro..." into Start and click "Run as administrator"). If ghci now works then the problem was solved because you now have access to the file c:\Windows\System32\pthread.dll.
To use ghci without Admin permissions (recommended), change the permissions (while you have admin permissions) so that user can read the pthread.dll file:
C:\> CACLS c:\Windows\System32\pthread.dll /e /p your-username:r
(replace your-username with your actual username)
Credit for this fix goes to this post: CS 3040: Installing Glasgow Haskell Compiler"