diff --git a/installer/bootstrap/check-install-dir.bat b/installer/bootstrap/check-install-dir.bat
index b2509b00..5cfc7c3b 100644
--- a/installer/bootstrap/check-install-dir.bat
+++ b/installer/bootstrap/check-install-dir.bat
@@ -1,5 +1,7 @@
 @echo off
 
+if exist "%SD_BASE_DIR%\env" exit /b
+
 set suggested_dir=%~d0\stable-diffusion-ui
 
 echo "Please install Stable Diffusion UI at the root of your drive. This avoids problems with path length limits in Windows." & echo.
diff --git a/installer/installer/tasks/fetch_project_repo.py b/installer/installer/tasks/fetch_project_repo.py
index 46e27560..11f1f549 100644
--- a/installer/installer/tasks/fetch_project_repo.py
+++ b/installer/installer/tasks/fetch_project_repo.py
@@ -17,7 +17,9 @@ def run():
         helpers.log("\nDownloading Stable Diffusion UI..\n")
         helpers.log(f"Using the {branch_name} channel\n")
 
-        if helpers.run(f'git clone {app.PROJECT_REPO_URL} "{app.project_repo_dir_path}"'):
+        helpers.run(f'git clone {app.PROJECT_REPO_URL} "{app.project_repo_dir_path}"')
+
+        if path.exists(project_repo_git_path):
             helpers.log("Downloaded Stable Diffusion UI")
         else:
             helpers.fail_with_install_error(error_msg="Could not download Stable Diffusion UI")
diff --git a/installer/installer/tasks/fetch_stable_diffusion_repo.py b/installer/installer/tasks/fetch_stable_diffusion_repo.py
index be9e2eab..cd2deeec 100644
--- a/installer/installer/tasks/fetch_stable_diffusion_repo.py
+++ b/installer/installer/tasks/fetch_stable_diffusion_repo.py
@@ -29,7 +29,9 @@ def fetch_repo():
         helpers.log("\nDownloading Stable Diffusion..\n")
         helpers.log(f"Using commit: {commit_id}\n")
 
-        if helpers.run(f'git clone {app.STABLE_DIFFUSION_REPO_URL} "{app.stable_diffusion_repo_dir_path}"'):
+        if helpers.run(f'git clone {app.STABLE_DIFFUSION_REPO_URL} "{app.stable_diffusion_repo_dir_path}"')
+
+        if path.exists(stable_diffusion_repo_git_path):
             helpers.log("Downloaded Stable Diffusion")
         else:
             helpers.fail_with_install_error(error_msg="Could not download Stable Diffusion")
diff --git a/installer/yaml/sd-environment-win-linux-nvidia.yaml b/installer/yaml/sd-environment-win-linux-nvidia.yaml
index d9775f42..d92c0d9a 100644
--- a/installer/yaml/sd-environment-win-linux-nvidia.yaml
+++ b/installer/yaml/sd-environment-win-linux-nvidia.yaml
@@ -2,13 +2,14 @@ name: ldm
 channels:
   - pytorch
   - defaults
+  - conda-forge
 dependencies:
   - python=3.10.5
   - pip=20.3
   - cudatoolkit=11.3
   - pytorch=1.11.0
   - torchvision=0.12.0
-  - numpy=1.19.2
+  - numpy=1.23.2
   - antlr4-python3-runtime=4.8
   - pip:
     - albumentations==0.4.3
@@ -24,8 +25,6 @@ dependencies:
     - torch-fidelity==0.3.0
     - transformers==4.19.2
     - torchmetrics==0.6.0
-    - pywavelets==1.3.0
-    - pandas==1.4.4
     - kornia==0.6
     - -e git+https://github.com/CompVis/taming-transformers.git@master#egg=taming-transformers
     - -e git+https://github.com/openai/CLIP.git@main#egg=clip