diff --git a/cfg/windows.cfg b/cfg/windows.cfg
index 2230f80dc..74a86f1ce 100644
--- a/cfg/windows.cfg
+++ b/cfg/windows.cfg
@@ -4049,6 +4049,16 @@ HFONT CreateFont(
       <not-uninit/>
     </arg>
   </function>
+  <!-- error_t _get_timezone( long* seconds); -->
+  <!-- error_t _get_daylight( int* hours ); -->
+  <function name="_get_timezone,_get_daylight">
+    <noreturn>false</noreturn>
+    <returnValue type="error_t"/>
+    <leak-ignore/>
+    <arg nr="1" direction="out">
+      <not-null/>
+    </arg>
+  </function>
   <!-- size_t _strftime_l(char *strDest, size_t maxsize, const char *format, const struct tm *timeptr, _locale_t locale); -->
   <!-- size_t _wcsftime_l(wchar_t *strDest, size_t maxsize, const wchar_t *format, const struct tm *timeptr, _locale_t locale);  -->
   <function name="_strftime_l,_wcsftime_l">
@@ -5995,6 +6005,18 @@ HFONT CreateFont(
       <not-bool/>
     </arg>
   </function>
+  <!-- int _chdir(const char *path); -->
+  <!-- int _wchdir(const wchar_t *path); -->
+  <function name="_chdir,_wchdir,_tchdir">
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <returnValue type="int"/>
+    <arg nr="1" direction="in">
+      <not-null/>
+      <not-uninit/>
+      <not-bool/>
+    </arg>
+  </function>
   <!-- int _finite(double x);
        int _finitef(float x); /* x64 and ARM/ARM64 only */ -->
   <function name="_finite,_finitef">
diff --git a/test/cfg/posix.c b/test/cfg/posix.c
index 0649b300a..a540f5a42 100644
--- a/test/cfg/posix.c
+++ b/test/cfg/posix.c
@@ -23,6 +23,26 @@
 #include <syslog.h>
 #include <stdarg.h>
 
+void uninitvar_putenv(char * envstr)
+{
+    // No warning is expected
+    (void)putenv(envstr);
+
+    char * p;
+    // cppcheck-suppress uninitvar
+    (void)putenv(p);
+}
+
+void nullPointer_putenv(char * envstr)
+{
+    // No warning is expected
+    (void)putenv(envstr);
+
+    char * p=NULL;
+    // cppcheck-suppress nullPointer
+    (void)putenv(p);
+}
+
 void memleak_scandir(void)
 {
     struct dirent **namelist;
diff --git a/test/cfg/windows.cpp b/test/cfg/windows.cpp
index 2affba1f6..f8afb0fb8 100644
--- a/test/cfg/windows.cpp
+++ b/test/cfg/windows.cpp
@@ -10,6 +10,28 @@
 #include <windows.h>
 #include <direct.h>
 #include <stdlib.h>
+#include <time.h>
+
+
+void uninitvar__putenv(char * envstr)
+{
+    // No warning is expected
+    (void)_putenv(envstr);
+
+    char * p;
+    // cppcheck-suppress uninitvar
+    (void)_putenv(p);
+}
+
+void nullPointer__putenv(char * envstr)
+{
+    // No warning is expected
+    (void)_putenv(envstr);
+
+    char * p=NULL;
+    // cppcheck-suppress nullPointer
+    (void)_putenv(p);
+}
 
 void invalidFunctionArg__getcwd(char * buffer)
 {
@@ -22,6 +44,26 @@ void invalidFunctionArg__getcwd(char * buffer)
     free(buffer);
 }
 
+void nullPointer__get_timezone(long *sec)
+{
+    // No warning is expected
+    (void)_get_timezone(sec);
+
+    long *pSec = NULL;
+    // cppcheck-suppress nullPointer
+    (void)_get_timezone(pSec);
+}
+
+void nullPointer__get_daylight(int *h)
+{
+    // No warning is expected
+    (void)_get_daylight(h);
+
+    int *pHours = NULL;
+    // cppcheck-suppress nullPointer
+    (void)_get_daylight(pHours);
+}
+
 void validCode()
 {
     DWORD dwordInit = 0;