diff --git a/.install/windows/install.nsi b/.install/windows/install.nsi
index a81f04fa98..08eba00407 100644
--- a/.install/windows/install.nsi
+++ b/.install/windows/install.nsi
@@ -13,9 +13,9 @@ InstallDir $PROFILE\faceswap
 # Download sites
 !define wwwGit "https://github.com/git-for-windows/git/releases/download/v2.20.1.windows.1/Git-2.20.1-64-bit.exe"
 
-# Latest miniconda appears to be broken when activating environment. Currently pinned to older version
-#!define wwwConda "https://repo.anaconda.com/miniconda/Miniconda3-latest-Windows-x86_64.exe"
-!define wwwConda "https://repo.anaconda.com/miniconda/Miniconda3-4.5.12-Windows-x86_64.exe"
+# Sometimes miniconda breaks. Uncomment/comment the following 2 lines to pin
+!define wwwConda "https://repo.anaconda.com/miniconda/Miniconda3-latest-Windows-x86_64.exe"
+#!define wwwConda "https://repo.anaconda.com/miniconda/Miniconda3-4.5.12-Windows-x86_64.exe"
 !define wwwRepo "https://github.com/deepfakes/faceswap.git"
 
 
@@ -383,14 +383,13 @@ Function CloneRepo
 FunctionEnd
 
 Function SetEnvironment
-    # Updating Conda breaks setup.py. Commented out in case this issue gets resolved in future
-#    DetailPrint "Initializing Conda..."
-#    SetDetailsPrint listonly
-#    ExecDos::exec /NOUNLOAD /ASYNC /DETAILED "$dirConda\scripts\activate.bat && conda update -y -n base -c defaults conda && conda deactivate"
-#    pop $0
-#    ExecDos::wait $0
-#    pop $0
-#    SetDetailsPrint both
+    DetailPrint "Initializing Conda..."
+    SetDetailsPrint listonly
+    ExecDos::exec /NOUNLOAD /ASYNC /DETAILED "$\"$dirConda\scripts\activate.bat$\" && conda update -y -n base -c defaults conda && conda deactivate"
+    pop $0
+    ExecDos::wait $0
+    pop $0
+    SetDetailsPrint both
     DetailPrint "Creating Conda Virtual Environment..."
 
     IfFileExists  "$dirConda\envs\$envName" DeleteEnv CreateEnv
diff --git a/lib/sysinfo.py b/lib/sysinfo.py
index bef8061d8a..522a495949 100644
--- a/lib/sysinfo.py
+++ b/lib/sysinfo.py
@@ -153,6 +153,11 @@ def git_commits(self):
         commits = stdout.decode().splitlines()
         return ". ".join(commits)
 
+    @property
+    def cuda_keys_windows(self):
+        """ Return the OS Environ CUDA Keys for Windows """
+        return [key for key in os.environ.keys() if key.lower().startswith("cuda_path_v")]
+
     @property
     def cuda_version(self):
         """ Get the installed CUDA version """
@@ -237,8 +242,11 @@ def cudnn_checkfiles_linux():
     def cudnn_checkfiles_windows(self):
         """ Return the checkfile locations for windows """
         # TODO A more reliable way of getting the windows location
-        if not self._cuda_path:
+        if not self._cuda_path and not self.cuda_keys_windows:
             return list()
+        if not self._cuda_path:
+            self._cuda_path = os.environ[self.cuda_keys_windows[0]]
+
         cudnn_checkfile = os.path.join(self._cuda_path, "include", "cudnn.h")
         return [cudnn_checkfile]
 
@@ -295,15 +303,13 @@ def cuda_version_linux(self):
 
     def cuda_version_windows(self):
         """ Get CUDA version for Windows systems """
-        cuda_keys = [key
-                     for key in os.environ.keys()
-                     if key.lower().startswith("cuda_path_v")]
+        cuda_keys = self.cuda_keys_windows
         if not cuda_keys:
             retval = "No global version found"
             if self.is_conda:
                 retval += ". Check Conda packages for Conda Cuda"
             return retval
-        cudavers = [key.replace("CUDA_PATH_V", "").replace("_", ".") for key in cuda_keys]
+        cudavers = [key.lower().replace("cuda_path_v", "").replace("_", ".") for key in cuda_keys]
         return " ".join(cudavers)
 
     def full_info(self):
diff --git a/setup.py b/setup.py
index 842bbad020..6c6627d64b 100755
--- a/setup.py
+++ b/setup.py
@@ -627,12 +627,13 @@ def conda_installer(self, package, channel=None, verbose=False, conda_only=False
             condaexe.extend(["-c", channel])
         condaexe.append(package)
         self.output.info("Installing {}".format(package))
+        shell = self.env.os.version[0] == "Windows"
         try:
             if verbose:
-                run(condaexe, check=True)
+                run(condaexe, check=True, shell=shell)
             else:
                 with open(os.devnull, "w") as devnull:
-                    run(condaexe, stdout=devnull, stderr=devnull, check=True)
+                    run(condaexe, stdout=devnull, stderr=devnull, check=True, shell=shell)
         except CalledProcessError:
             if not conda_only:
                 self.output.info("{} not available in Conda. Installing with pip".format(package))