diff --git a/src/tribler/core/utilities/tests/test_exit_codes.py b/src/tribler/core/utilities/tests/test_exit_codes.py
index d576462d789..212d5e52cb0 100644
--- a/src/tribler/core/utilities/tests/test_exit_codes.py
+++ b/src/tribler/core/utilities/tests/test_exit_codes.py
@@ -1,9 +1,8 @@
-from unittest.mock import patch
+import os
 
 from tribler.core.utilities.exit_codes import get_error_name
 
 
-@patch('os.name', 'nt')
 def test_exit_codes():
     assert get_error_name(0) == 'EXITCODE_OK'
     assert get_error_name(1) == 'EXITCODE_APPLICATION_ERROR'
@@ -11,7 +10,8 @@ def test_exit_codes():
     assert get_error_name(98) == 'EXITCODE_ANOTHER_GUI_PROCESS_IS_RUNNING'
     assert get_error_name(97) == 'EXITCODE_ANOTHER_CORE_PROCESS_IS_RUNNING'
 
-    assert get_error_name(-1073741819) == 'STATUS_ACCESS_VIOLATION'
-    assert get_error_name(-1073740940) == 'STATUS_HEAP_CORRUPTION'
+    if os.name == 'nt':
+        assert get_error_name(-1073741819) == 'STATUS_ACCESS_VIOLATION'
+        assert get_error_name(-1073740940) == 'STATUS_HEAP_CORRUPTION'
 
     assert get_error_name(1000000) == 'Unknown error'
diff --git a/src/tribler/gui/tests/test_core_manager.py b/src/tribler/gui/tests/test_core_manager.py
index 0a481f49123..9379127227e 100644
--- a/src/tribler/gui/tests/test_core_manager.py
+++ b/src/tribler/gui/tests/test_core_manager.py
@@ -1,4 +1,5 @@
 import errno
+import os
 import sys
 import time
 from unittest.mock import MagicMock, patch
@@ -141,10 +142,20 @@ def test_decode_raw_core_output(core_manager):
 
 
 def test_format_error_message():
-    actual = CoreManager.format_error_message(exit_code=errno.ENOENT, exit_status=1)
-    expected = '''The Tribler core has unexpectedly finished with exit code 2 (0x2) and status: 1.
+    actual = CoreManager.format_error_message(exit_code=99, exit_status=1)
+    expected = '''The Tribler core has unexpectedly finished with exit code 99 (0x63) and status: 1.
 
-Error message: No such file or directory'''
+Error message: EXITCODE_DATABASE_IS_CORRUPTED'''
+
+    assert actual == expected
+
+
+@pytest.mark.skipif(os.name != 'nt', reason='Test is only for Windows')
+def test_format_error_message_windows():
+    actual = CoreManager.format_error_message(exit_code=-1073741819, exit_status=1)
+    expected = '''The Tribler core has unexpectedly finished with exit code -1073741819 (0xc0000005) and status: 1.
+
+Error message: STATUS_ACCESS_VIOLATION'''
 
     assert actual == expected