diff --git a/desktop_env/envs/__init__.py b/desktop_env/envs/__init__.py
index 470c203..7f5baf6 100644
--- a/desktop_env/envs/__init__.py
+++ b/desktop_env/envs/__init__.py
@@ -12,7 +12,7 @@ import psutil
 import requests
 from tqdm import tqdm
 
-__version__ = "0.1.9"
+__version__ = "0.1.12"
 
 MAX_RETRY_TIMES = 10
 UBUNTU_ARM_URL = "https://huggingface.co/datasets/xlangai/ubuntu_arm/resolve/main/Ubuntu.zip"
@@ -283,31 +283,45 @@ def _install_virtual_machine(vm_name, vms_dir, downloaded_file_name, original_vm
             raise Exception("Unsupported operating system")
 
     # Start the virtual machine
-    subprocess.run(f'vmrun {get_vmrun_type()} start "{vm_path}" nogui', shell=True)
-    print("Starting virtual machine...")
+    def start_vm(vm_path, max_retries=20):
+        command = f'vmrun {get_vmrun_type()} start "{vm_path}" nogui'
+        for attempt in range(max_retries):
+            result = subprocess.run(command, shell=True, text=True, capture_output=True)
+            if result.returncode == 0:
+                print("Virtual machine started.")
+                return True
+            else:
+                if "Error" in result.stderr:
+                    print(f"Attempt {attempt + 1} failed with specific error: {result.stderr}")
+                else:
+                    print(f"Attempt {attempt + 1} failed: {result.stderr}")
 
-    # Get the IP address of the virtual machine
-    for i in range(MAX_RETRY_TIMES):
-        get_vm_ip = subprocess.run(f'vmrun {get_vmrun_type()} getGuestIPAddress "{vm_path}" -wait', shell=True,
-                                   capture_output=True,
-                                   text=True)
-        if "Error" in get_vm_ip.stdout:
-            print("Retry on getting IP")
-            continue
-        print("Virtual machine IP address:", get_vm_ip.stdout.strip())
-        break
+                if attempt == max_retries - 1:
+                    print("Maximum retry attempts reached, failed to start the virtual machine.")
+                    return False
 
-    vm_ip = get_vm_ip.stdout.strip()
+    if not start_vm(vm_path):
+        raise ValueError("Error encountered during installation, please rerun the code for retrying.")
 
-    def is_url_accessible(url, timeout=1):
-        try:
-            response = requests.head(url, timeout=timeout)
-            return response.status_code == 200
-        except requests.exceptions.RequestException:
-            return False
+    def get_vm_ip(vm_path, max_retries=20):
+        command = f'vmrun {get_vmrun_type()} getGuestIPAddress "{vm_path}" -wait'
+        for attempt in range(max_retries):
+            result = subprocess.run(command, shell=True, text=True, capture_output=True)
+            if result.returncode == 0:
+                return result.stdout.strip()
+            else:
+                if "Error" in result.stderr:
+                    print(f"Attempt {attempt + 1} failed with specific error: {result.stderr}")
+                else:
+                    print(f"Attempt {attempt + 1} failed: {result.stderr}")
 
-    url = f"http://{vm_ip}:5000/screenshot"
-    check_url = is_url_accessible(url)
+                if attempt == max_retries - 1:
+                    print("Maximum retry attempts reached, failed to get the IP of virtual machine.")
+                    return None
+
+    vm_ip = get_vm_ip(vm_path)
+    if not vm_ip:
+        raise ValueError("Error encountered during installation, please rerun the code for retrying.")
 
     # Function used to check whether the virtual machine is ready
     def download_screenshot(ip):
@@ -330,11 +344,28 @@ def _install_virtual_machine(vm_name, vms_dir, downloaded_file_name, original_vm
 
     print("Virtual machine is ready. Start to make a snapshot on the virtual machine. It would take a while...")
 
-    # Create a snapshot of the virtual machine
-    subprocess.run(f'vmrun {get_vmrun_type()} snapshot "{vm_path}" "init_state"', shell=True)
-    print("Snapshot created.")
+    def create_vm_snapshot(vm_path, max_retries=20):
+        command = f'vmrun {get_vmrun_type()} snapshot "{vm_path}" "init_state"'
+        for attempt in range(max_retries):
+            result = subprocess.run(command, shell=True, text=True, capture_output=True)
+            if result.returncode == 0:
+                print("Snapshot created.")
+                return True
+            else:
+                if "Error" in result.stderr:
+                    print(f"Attempt {attempt + 1} failed with specific error: {result.stderr}")
+                else:
+                    print(f"Attempt {attempt + 1} failed: {result.stderr}")
 
-    return vm_path
+                if attempt == max_retries - 1:
+                    print("Maximum retry attempts reached, failed to create snapshot.")
+                    return False
+
+    # Create a snapshot of the virtual machine
+    if create_vm_snapshot(vm_path, max_retries=MAX_RETRY_TIMES):
+        return vm_path
+    else:
+        raise ValueError("Error encountered during installation, please rerun the code for retrying.")
 
 
 def _get_vm_path():
diff --git a/desktop_env/envs/desktop_env.py b/desktop_env/envs/desktop_env.py
index 125679a..2f84efe 100644
--- a/desktop_env/envs/desktop_env.py
+++ b/desktop_env/envs/desktop_env.py
@@ -217,9 +217,6 @@ class DesktopEnv(gym.Env):
         logger.info("Resetting environment...")
 
         logger.info("Switching task...")
-        if task_config is not None:
-            self._set_task_info(task_config)
-            self.setup_controller.reset_cache_dir(self.cache_dir)
 
         logger.info("Setting counters...")
         self._traj_no += 1
@@ -234,11 +231,13 @@ class DesktopEnv(gym.Env):
         self._start_emulator()
         logger.info("Emulator started.")
 
-        logger.info("Setting up environment...")
-        self.setup_controller.setup(self.config)
-
-        time.sleep(5)
-        logger.info("Environment setup complete.")
+        if task_config is not None:
+            self._set_task_info(task_config)
+            self.setup_controller.reset_cache_dir(self.cache_dir)
+            logger.info("Setting up environment...")
+            self.setup_controller.setup(self.config)
+            time.sleep(5)
+            logger.info("Environment setup complete.")
 
         observation = self._get_obs()
         return observation