fix: handle FileNotFoundError when accessing Windows registry keys

module/device/platform/emulator_windows.py

@@ -5,11 +5,11 @@ import typing as t
 import winreg
 from dataclasses import dataclass
 
+from module.device.platform.emulator_base import EmulatorBase, EmulatorInstanceBase, EmulatorManagerBase
 # module/device/platform/emulator_base.py
 # module/device/platform/emulator_windows.py
 # Will be used in Alas Easy Install, they shouldn't import any Alas modules.
 from module.device.platform.utils import cached_property, iter_folder
-from module.device.platform.emulator_base import EmulatorBase, EmulatorInstanceBase, EmulatorManagerBase
 
 
 @dataclass
@@ -330,8 +330,12 @@ class EmulatorManager(EmulatorManagerBase):
         path = r'Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist'
         # {XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}\xxx.exe
         regex_hash = re.compile(r'{.*}')
+        try:
             with winreg.OpenKey(winreg.HKEY_CURRENT_USER, path) as reg:
                 folders = list_key(reg)
+        except FileNotFoundError:
+            return
+
         for folder in folders:
             try:
                 with winreg.OpenKey(winreg.HKEY_CURRENT_USER, f'{path}\\{folder}\\Count') as reg:
@@ -358,8 +362,11 @@ class EmulatorManager(EmulatorManagerBase):
             str: Path to emulator executable, may contains duplicate values
         """
         path = r'Software\Classes\Local Settings\Software\Microsoft\Windows\Shell\MuiCache'
+        try:
             with winreg.OpenKey(winreg.HKEY_CURRENT_USER, path) as reg:
                 rows = list_reg(reg)
+        except FileNotFoundError:
+            return
 
         regex = re.compile(r'(^.*\.exe)\.')
         for row in rows:
@@ -425,12 +432,16 @@ class EmulatorManager(EmulatorManagerBase):
             'MEmu',
         ]
         for path in known_uninstall_registry_path:
+            try:
                 with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path) as reg:
-                for software in list_key(reg):
+                    software_list = list_key(reg)
+            except FileNotFoundError:
+                continue
+            for software in software_list:
                 if software not in known_emulator_registry_name:
                     continue
-                    with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, f'{path}\\{software}') as software_reg:
                 try:
+                    with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, f'{path}\\{software}') as software_reg:
                         uninstall = winreg.QueryValueEx(software_reg, 'UninstallString')[0]
                 except FileNotFoundError:
                     continue