diff --git a/lib/GHCup.hs b/lib/GHCup.hs
index 5e3d92f..a0c1382 100644
--- a/lib/GHCup.hs
+++ b/lib/GHCup.hs
@@ -476,58 +476,6 @@ installCabal' path inst ver = do
     destPath
   lift $ chmod_755 destPath
 
--- | Installs GHC to a specified location, doesn't make any symlinks.
-installCabalBinIsolated :: ( MonadMask m
-                           , MonadCatch m
-                           , MonadReader env m
-                           , HasPlatformReq env
-                           , HasGHCupInfo env
-                           , HasDirs env
-                           , HasSettings env
-                           , MonadLogger m
-                           , MonadResource m
-                           , MonadIO m
-                           , MonadUnliftIO m
-                           , MonadFail m
-                           )
-                        => FilePath
-                        -> Version
-                        -> Excepts
-                             '[ AlreadyInstalled
-                              , CopyError
-                              , DigestError
-                              , DownloadFailed
-                              , NoDownload
-                              , NotInstalled
-                              , UnknownArchive
-                              , TarDirDoesNotExist
-#if !defined(TAR)
-                              , ArchiveResult
-#endif
-                              ]
-                             m
-                             ()
-installCabalBinIsolated isoDir ver = do
-  dlinfo <- liftE $ getDownloadInfo Cabal ver
-  lift $ $(logDebug) [i|Requested to install cabal version #{ver}|]
-
-  -- download (or use cached version)
-  dl <- liftE $ downloadCached dlinfo Nothing
-
-  PlatformRequest {_rPlatform} <- lift getPlatformReq
-
-  -- unpack
-  tmpUnpack <- lift withGHCupTmpDir
-  liftE $ unpackToDir tmpUnpack dl
-  void $ lift $ darwinNotarization _rPlatform tmpUnpack
-
-  -- the subdir of the archive where we do the work
-  workdir <- maybe (pure tmpUnpack) (liftE . intoSubdir tmpUnpack) (view dlSubdir dlinfo)
-
-  lift $ $(logInfo) [i|isolated installing Cabal to #{isoDir}|]
-  liftE $ installCabal' workdir isoDir ver
-
-
 -- | Installs cabal into @~\/.ghcup\/bin/cabal-\<ver\>@ and
 -- creates a default @cabal -> cabal-x.y.z.q@ symlink for
 -- the latest installed version.