diff --git a/deploy/emulator.py b/deploy/emulator.py
index b16069d1b..7eb076a75 100644
--- a/deploy/emulator.py
+++ b/deploy/emulator.py
@@ -50,10 +50,11 @@ class VirtualBoxEmulator:
                 return root
 
         try:
-            reg = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, f'{self.UNINSTALL_REG}\\{self.name}', 0)
+            with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, f'{self.UNINSTALL_REG}\\{self.name}', 0) as reg:
+                res = winreg.QueryValueEx(reg, 'UninstallString')[0]
         except FileNotFoundError:
-            reg = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, f'{self.UNINSTALL_REG_2}\\{self.name}', 0)
-        res = winreg.QueryValueEx(reg, 'UninstallString')[0]
+            with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, f'{self.UNINSTALL_REG_2}\\{self.name}', 0) as reg:
+                res = winreg.QueryValueEx(reg, 'UninstallString')[0]
 
         file = re.search('"(.*?)"', res)
         file = file.group(1) if file else res
@@ -70,17 +71,17 @@ class VirtualBoxEmulator:
             str: Installation dir or None
         """
         try:
-            reg = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path, 0)
-            root = winreg.QueryValueEx(reg, key)[0]
-            if os.path.exists(root):
-                return root
+            with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path, 0) as reg:
+                root = winreg.QueryValueEx(reg, key)[0]
+                if os.path.exists(root):
+                    return root
         except FileNotFoundError:
             pass
         try:
-            reg = winreg.OpenKey(winreg.HKEY_CURRENT_USER, path, 0)
-            root = winreg.QueryValueEx(reg, key)[0]
-            if os.path.exists(root):
-                return root
+            with winreg.OpenKey(winreg.HKEY_CURRENT_USER, path, 0) as reg:
+                root = winreg.QueryValueEx(reg, key)[0]
+                if os.path.exists(root):
+                    return root
         except FileNotFoundError:
             pass