diff --git a/docs/en/usage/tensorrt.md b/docs/en/usage/tensorrt.md
index a9f765dd..52cd1681 100644
--- a/docs/en/usage/tensorrt.md
+++ b/docs/en/usage/tensorrt.md
@@ -22,6 +22,7 @@ set GIT=
 set VENV_DIR=
 set COMMANDLINE_ARGS=--tensorrt --reinstall-torch
 set TORCH_COMMAND=pip install torch==1.13.1+cu117 torchvision==0.14.1+cu117 --extra-index-url https://download.pytorch.org/whl/cu117
+set XFORMERS_COMMAND=pip install xformers==0.0.16
 
 call launch.bat
 ```
@@ -41,6 +42,7 @@ call launch.bat
 ```sh
 export COMMANDLINE_ARGS="--tensorrt --reinstall-torch"
 export TORCH_COMMAND="pip install torch==1.13.1+cu117 torchvision==0.14.1+cu117 --extra-index-url https://download.pytorch.org/whl/cu117"
+export XFORMERS_COMMAND="pip install xformers==0.0.16"
 ```
 
 2. Run `launch-user.sh`
diff --git a/docs/ja/usage/tensorrt.md b/docs/ja/usage/tensorrt.md
index d31e55c4..cfb72a75 100644
--- a/docs/ja/usage/tensorrt.md
+++ b/docs/ja/usage/tensorrt.md
@@ -23,6 +23,7 @@ set GIT=
 set VENV_DIR=
 set COMMANDLINE_ARGS=--tensorrt --reinstall-torch
 set TORCH_COMMAND=pip install torch==1.13.1+cu117 torchvision==0.14.1+cu117 --extra-index-url https://download.pytorch.org/whl/cu117
+set XFORMERS_COMMAND=pip install xformers==0.0.16
 
 call launch.bat
 ```
@@ -42,6 +43,7 @@ call launch.bat
 ```sh
 export COMMANDLINE_ARGS="--tensorrt --reinstall-torch"
 export TORCH_COMMAND="pip install torch==1.13.1+cu117 torchvision==0.14.1+cu117 --extra-index-url https://download.pytorch.org/whl/cu117"
+export XFORMERS_COMMAND="pip install xformers==0.0.16"
 ```
 
 2. `launch-user.sh`を実行します
diff --git a/launch-user.bat b/launch-user.bat
index ffab1e39..95a8837e 100644
--- a/launch-user.bat
+++ b/launch-user.bat
@@ -5,4 +5,4 @@ set GIT=
 set VENV_DIR=
 set COMMANDLINE_ARGS=
 
-call launch.bat
\ No newline at end of file
+call launch.bat
diff --git a/launch.py b/launch.py
index 0f05695d..dd3720e1 100644
--- a/launch.py
+++ b/launch.py
@@ -149,6 +149,10 @@ def prepare_environment():
         "TORCH_COMMAND",
         "pip install torch torchvision --extra-index-url https://download.pytorch.org/whl/cu118",
     )
+    xformers_command = os.environ.get(
+        "XFORMERS_COMMAND",
+        "pip install xformers",
+    )
 
     sys.argv, skip_install = extract_arg(sys.argv, "--skip-install")
     if skip_install:
@@ -159,12 +163,6 @@ def prepare_environment():
     tensorrt = "--tensorrt" in sys.argv
 
     if reinstall_torch or not is_installed("torch") or not is_installed("torchvision"):
-        if reinstall_torch:
-            run(
-                f'"{python}" -m pip uninstall torch torchvision -y',
-                "Uninstalling torch and torchvision",
-                "Couldn't uninstall torch",
-            )
         run(
             f'"{python}" -m {torch_command}',
             "Installing torch and torchvision",
@@ -172,7 +170,11 @@ def prepare_environment():
         )
 
     if reinstall_xformers or not is_installed("xformers"):
-        run_pip("install xformers", "xformers")
+        run(
+            f'"{python}" -m {xformers_command}',
+            "Installing xformers",
+            "Couldn't install xformers",
+        )
 
     run(
         f'"{python}" -m pip install -r requirements/base.txt',
diff --git a/user-env.sh b/user-env.sh
index 01da28a0..16ea91b8 100644
--- a/user-env.sh
+++ b/user-env.sh
@@ -21,6 +21,9 @@
 # install command for torch
 #export TORCH_COMMAND="pip install torch --extra-index-url https://download.pytorch.org/whl/cu118"
 
+# install command for xformers
+#export XFORMERS_COMMAND="pip install xformers"
+
 # Requirements file to use for stable-diffusion-webui
 #export REQS_FILE="requirements_versions.txt"