diff --git a/demos/demo-custom-exceptions/app/Main.hs b/demos/demo-custom-exceptions/app/Main.hs
index 7411a9ef..4286e917 100644
--- a/demos/demo-custom-exceptions/app/Main.hs
+++ b/demos/demo-custom-exceptions/app/Main.hs
@@ -3,14 +3,9 @@
 {-# LANGUAGE QuasiQuotes #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ConstraintKinds #-}
-{-# LANGUAGE CPP #-}
 
 module Main where
 
-#ifdef mingw32_HOST_OS
-main :: IO ()
-main = putStrLn "Demo not enabled on Windows."
-#else
 import Brick
 import Control.Exception
 import Control.Monad.IO.Class
@@ -60,4 +55,3 @@ testOptions = defaultOptions {
 
 main :: IO ()
 main = runSandwich testOptions customExceptionsDemo
-#endif
diff --git a/demos/demo-tui/app/Main.hs b/demos/demo-tui/app/Main.hs
index ee17a750..ff2e40c1 100644
--- a/demos/demo-tui/app/Main.hs
+++ b/demos/demo-tui/app/Main.hs
@@ -2,14 +2,9 @@
 {-# LANGUAGE DataKinds #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE QuasiQuotes #-}
-{-# LANGUAGE CPP #-}
 
 module Main where
 
-#ifdef mingw32_HOST_OS
-main :: IO ()
-main = putStrLn "Demo not enabled on Windows."
-#else
 import Common
 import Control.Concurrent
 import Control.Monad.IO.Class
@@ -40,5 +35,3 @@ testOptions = defaultOptions {
 
 main :: IO ()
 main = runSandwichWithCommandLineArgs testOptions simple
-
-#endif
diff --git a/sandwich-slack/app/Main.hs b/sandwich-slack/app/Main.hs
index 1e7e57bb..ed4ca0e1 100644
--- a/sandwich-slack/app/Main.hs
+++ b/sandwich-slack/app/Main.hs
@@ -10,10 +10,7 @@ import GHC.Stack
 import Test.Sandwich
 import Test.Sandwich.Formatters.Print
 import Test.Sandwich.Formatters.Slack
-
-#ifndef mingw32_HOST_OS
 import Test.Sandwich.Formatters.TerminalUI
-#endif
 
 
 simple :: TopSpec
@@ -42,18 +39,12 @@ slackFormatter = defaultSlackFormatter {
   , slackFormatterVisibilityThreshold = Just 50
   }
 
-#ifndef mingw32_HOST_OS
-baseFormatter = SomeFormatter defaultTerminalUIFormatter
-#else
-baseFormatter = SomeFormatter defaultPrintFormatter
-#endif
-
 main :: IO ()
 main = runSandwich options simple
   where
     options = defaultOptions {
       optionsTestArtifactsDirectory = TestArtifactsGeneratedDirectory "test_runs" (show <$> getCurrentTime)
-      , optionsFormatters = [baseFormatter, SomeFormatter slackFormatter]
+      , optionsFormatters = [SomeFormatter defaultTerminalUIFormatter, SomeFormatter slackFormatter]
       }
 
 -- * Util
diff --git a/sandwich/app/Main.hs b/sandwich/app/Main.hs
index ce2cf1c9..3ac38a9e 100644
--- a/sandwich/app/Main.hs
+++ b/sandwich/app/Main.hs
@@ -15,10 +15,7 @@ import Test.Sandwich
 import Test.Sandwich.Formatters.FailureReport
 import Test.Sandwich.Formatters.LogSaver
 import Test.Sandwich.Formatters.Print
-
-#ifndef mingw32_HOST_OS
 import Test.Sandwich.Formatters.TerminalUI
-#endif
 
 
 data Database = Database String
diff --git a/sandwich/src/Test/Sandwich/ArgParsing.hs b/sandwich/src/Test/Sandwich/ArgParsing.hs
index 883d3478..2378eb61 100644
--- a/sandwich/src/Test/Sandwich/ArgParsing.hs
+++ b/sandwich/src/Test/Sandwich/ArgParsing.hs
@@ -19,17 +19,14 @@ import Test.Sandwich.Formatters.FailureReport
 import Test.Sandwich.Formatters.MarkdownSummary
 import Test.Sandwich.Formatters.Print.Types
 import Test.Sandwich.Formatters.Silent
+import Test.Sandwich.Formatters.TerminalUI
+import Test.Sandwich.Formatters.TerminalUI.Types
 import Test.Sandwich.Internal.Running
 import Test.Sandwich.Options
 import Test.Sandwich.Types.ArgParsing
 import Test.Sandwich.Types.RunTree
 import Test.Sandwich.Types.Spec
 
-#ifndef mingw32_HOST_OS
-import Test.Sandwich.Formatters.TerminalUI
-import Test.Sandwich.Formatters.TerminalUI.Types
-#endif
-
 #if MIN_VERSION_time(1,9,0)
 import Data.Time.Format.ISO8601
 formatTime = T.unpack . T.replace ":" "_" . T.pack . iso8601Show
@@ -115,9 +112,7 @@ formatter :: Parser FormatterType
 formatter =
   flag' Print (long "print" <> help "Print to stdout")
   <|> flag' PrintFailures (long "print-failures" <> help "Print failures only to stdout")
-#ifndef mingw32_HOST_OS
   <|> flag' TUI (long "tui" <> help "Open terminal UI app")
-#endif
   <|> flag' Silent (long "silent" <> help "Run silently (print the run root only)")
   <|> flag Auto Auto (long "auto" <> help "Automatically decide which formatter to use")
 
@@ -248,11 +243,9 @@ addOptionsFromArgs baseOptions (CommandLineOptions {..}) = do
           -- you end up with no output and a hanging process (until you hit 'q'; stdin is still attached).
           -- Seems like the best default is just the print formatter.
           printFormatter
-#ifndef mingw32_HOST_OS
         (_, TUI) ->
           let mainTerminalUiFormatter = headMay [x | SomeFormatter (cast -> Just x@(TerminalUIFormatter {})) <- optionsFormatters baseOptions]
           in SomeFormatter $ (fromMaybe defaultTerminalUIFormatter mainTerminalUiFormatter) { terminalUILogLevel = optLogLevel }
-#endif
         (_, Print) -> printFormatter
         (_, PrintFailures) -> failureReportFormatter
         (_, Silent) -> silentFormatter
@@ -285,27 +278,18 @@ addOptionsFromArgs baseOptions (CommandLineOptions {..}) = do
     isMainFormatter :: SomeFormatter -> Bool
     isMainFormatter (SomeFormatter x) = case cast x of
       Just (_ :: PrintFormatter) -> True
-#ifdef mingw32_HOST_OS
-      Nothing -> False
-#else
       Nothing -> case cast x of
         Just (_ :: TerminalUIFormatter) -> True
         Nothing -> False
-#endif
 
     setVisibilityThreshold Nothing x = x
     setVisibilityThreshold (Just v) x@(SomeFormatter f) = case cast f of
       Just pf@(PrintFormatter {}) -> SomeFormatter (pf { printFormatterVisibilityThreshold = v })
       Nothing -> case cast f of
-#ifdef mingw32_HOST_OS
-        Just (frf :: FailureReportFormatter) -> SomeFormatter (frf { failureReportVisibilityThreshold = v })
-        Nothing -> x
-#else
         Just tuif@(TerminalUIFormatter {}) -> SomeFormatter (tuif { terminalUIVisibilityThreshold = v })
         Nothing -> case cast f of
           Just (frf :: FailureReportFormatter) -> SomeFormatter (frf { failureReportVisibilityThreshold = v })
           Nothing -> x
-#endif
 
     isMarkdownSummaryFormatter :: SomeFormatter -> Bool
     isMarkdownSummaryFormatter (SomeFormatter x) = case cast x of
diff --git a/sandwich/src/Test/Sandwich/Types/ArgParsing.hs b/sandwich/src/Test/Sandwich/Types/ArgParsing.hs
index 73b9b196..1012c445 100644
--- a/sandwich/src/Test/Sandwich/Types/ArgParsing.hs
+++ b/sandwich/src/Test/Sandwich/Types/ArgParsing.hs
@@ -11,9 +11,7 @@ import GHC.Int
 
 data FormatterType =
   Print
-#ifndef mingw32_HOST_OS
   | TUI
-#endif
   | PrintFailures
   | Auto
   | Silent
@@ -21,17 +19,13 @@ data FormatterType =
 instance Show FormatterType where
   show Print = "print"
   show PrintFailures = "print-failures"
-#ifndef mingw32_HOST_OS
   show TUI = "tui"
-#endif
   show Auto = "auto"
   show Silent = "silent"
 
 instance Read FormatterType where
   readsPrec _ "print" = [(Print, "")]
-#ifndef mingw32_HOST_OS
   readsPrec _ "tui" = [(TUI, "")]
-#endif
   readsPrec _ "auto" = [(Auto, "")]
   readsPrec _ "silent" = [(Silent, "")]
   readsPrec _ _ = []