diff --git a/Include/pystate.h b/Include/pystate.h
@@ -235,6 +235,12 @@ typedef struct {

       See PEP 552 "Deterministic pycs" for more details. */
    const char *_check_hash_pycs_mode;
} _PyCoreConfig;

#ifdef MS_WINDOWS
@@ -269,7 +275,8 @@ typedef struct {
        .user_site_directory = -1, \
        .unbuffered_stdio = -1, \
        _PyCoreConfig_WINDOWS_INIT \
-        ._install_importlib = 1}
/* Note: _PyCoreConfig_INIT sets other fields to 0/NULL */

/* Placeholders while working on the new configuration API

diff --git a/Modules/main.c b/Modules/main.c
@@ -573,6 +573,7 @@ _PyCoreConfig_GetGlobalConfig(_PyCoreConfig *config)
    COPY_FLAG(legacy_windows_fs_encoding, Py_LegacyWindowsFSEncodingFlag);
    COPY_FLAG(legacy_windows_stdio, Py_LegacyWindowsStdioFlag);
#endif

    COPY_NOT_FLAG(use_environment, Py_IgnoreEnvironmentFlag);
    COPY_NOT_FLAG(site_import, Py_NoSiteFlag);
@@ -759,6 +760,7 @@ _PyCoreConfig_Copy(_PyCoreConfig *config, const _PyCoreConfig *config2)
    COPY_ATTR(legacy_windows_stdio);
#endif
    COPY_ATTR(_check_hash_pycs_mode);

#undef COPY_ATTR
#undef COPY_STR_ATTR
@@ -2281,6 +2283,9 @@ _PyCoreConfig_Read(_PyCoreConfig *config)
    if (config->utf8_mode < 0) {
        config->utf8_mode = 0;
    }

    return _Py_INIT_OK();
}

diff --git a/Programs/_freeze_importlib.c b/Programs/_freeze_importlib.c
@@ -82,8 +82,7 @@ main(int argc, char *argv[])
    /* Don't install importlib, since it could execute outdated bytecode. */
    config._install_importlib = 0;
    config.install_signal_handlers = 1;
-
-    Py_FrozenFlag++;

    _PyInitError err = _Py_InitializeFromConfig(&config);
    /* No need to call _PyCoreConfig_Clear() since we didn't allocate any

diff --git a/Python/frozenmain.c b/Python/frozenmain.c
@@ -41,7 +41,8 @@ Py_FrozenMain(int argc, char **argv)
        }
    }

-    Py_FrozenFlag = 1; /* Suppress errors from getpath.c */

    if ((p = Py_GETENV("PYTHONINSPECT")) && *p != '\0')
        inspect = 1;
@@ -80,7 +81,14 @@ Py_FrozenMain(int argc, char **argv)
#endif /* MS_WINDOWS */
    if (argc >= 1)
        Py_SetProgramName(argv_copy[0]);
-    Py_Initialize();
#ifdef MS_WINDOWS
    PyWinFreeze_ExeInit();
#endif