diff --git a/include/os/osThread.h b/include/os/osThread.h
index aa0dc066c6..3fdafe2c34 100644
--- a/include/os/osThread.h
+++ b/include/os/osThread.h
@@ -22,6 +22,15 @@
 extern "C" {
 #endif
 
+#if defined(WINDOWS) && !defined(__USE_PTHREAD)
+#include <windows.h>
+#define __USE_WIN_THREAD
+// https://learn.microsoft.com/en-us/windows/win32/winprog/using-the-windows-headers
+// #ifndef _WIN32_WINNT
+// #define _WIN32_WINNT 0x0600
+// #endif
+#endif
+
 #if !defined(WINDOWS) && !defined(_ALPINE)
 #ifndef __USE_XOPEN2K
 #define TD_USE_SPINLOCK_AS_MUTEX
@@ -29,6 +38,22 @@ typedef pthread_mutex_t pthread_spinlock_t;
 #endif
 #endif
 
+#ifdef __USE_WIN_THREAD
+typedef pthread_t          TdThread;           // pthread api
+typedef pthread_spinlock_t TdThreadSpinlock;   // pthread api
+typedef CRITICAL_SECTION   TdThreadMutex;      // windows api
+typedef HANDLE             TdThreadMutexAttr;  // windows api
+typedef struct {
+  SRWLOCK lock;
+  int8_t  excl;
+} TdThreadRwlock;                               // pthread api
+typedef pthread_attr_t     TdThreadAttr;        // pthread api
+typedef pthread_once_t     TdThreadOnce;        // pthread api
+typedef HANDLE             TdThreadRwlockAttr;  // windows api
+typedef CONDITION_VARIABLE TdThreadCond;        // windows api
+typedef HANDLE             TdThreadCondAttr;    // windows api
+typedef pthread_key_t      TdThreadKey;         // pthread api
+#else
 typedef pthread_t            TdThread;
 typedef pthread_spinlock_t   TdThreadSpinlock;
 typedef pthread_mutex_t      TdThreadMutex;
@@ -40,11 +65,14 @@ typedef pthread_rwlockattr_t TdThreadRwlockAttr;
 typedef pthread_cond_t       TdThreadCond;
 typedef pthread_condattr_t   TdThreadCondAttr;
 typedef pthread_key_t        TdThreadKey;
+#endif
 
 #define taosThreadCleanupPush pthread_cleanup_push
 #define taosThreadCleanupPop  pthread_cleanup_pop
 
-#ifdef WINDOWS
+#if defined(WINDOWS) && !defined(__USE_PTHREAD)
+#define TD_PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER_FORBID
+#elif defined(WINDOWS)
 #define TD_PTHREAD_MUTEX_INITIALIZER (TdThreadMutex)(-1)
 #else
 #define TD_PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
diff --git a/source/os/src/osFile.c b/source/os/src/osFile.c
index f7b580345b..0baffcbad6 100644
--- a/source/os/src/osFile.c
+++ b/source/os/src/osFile.c
@@ -456,10 +456,20 @@ int64_t taosPReadFile(TdFilePtr pFile, void *buf, int64_t count, int64_t offset)
     return -1;
   }
 #ifdef WINDOWS
-  size_t pos = _lseeki64(pFile->fd, 0, SEEK_CUR);
-  _lseeki64(pFile->fd, offset, SEEK_SET);
-  int64_t ret = _read(pFile->fd, buf, count);
-  _lseeki64(pFile->fd, pos, SEEK_SET);
+  int64_t ret = 0;
+
+  OVERLAPPED ol = {0};
+  ol.OffsetHigh = (uint32_t)((offset & 0xFFFFFFFF00000000LL) >> 0x20);
+  ol.Offset = (uint32_t)(offset & 0xFFFFFFFFLL);
+
+  HANDLE handle = (HANDLE)_get_osfhandle(pFile->fd);
+  SetLastError(0);
+  bool result = ReadFile(handle, buf, count, &ret, &ol);
+
+  if (!result && GetLastError() != ERROR_HANDLE_EOF) {
+    errno = GetLastError();
+    return -1;
+  }
 #else
   int64_t ret = pread(pFile->fd, buf, count, offset);
 #endif
@@ -523,10 +533,19 @@ int64_t taosPWriteFile(TdFilePtr pFile, const void *buf, int64_t count, int64_t
     return 0;
   }
 #ifdef WINDOWS
-  size_t pos = _lseeki64(pFile->fd, 0, SEEK_CUR);
-  _lseeki64(pFile->fd, offset, SEEK_SET);
-  int64_t ret = _write(pFile->fd, buf, count);
-  _lseeki64(pFile->fd, pos, SEEK_SET);
+  int64_t ret = 0;
+
+  OVERLAPPED ol = {0};
+  pl.OffsetHigh = (uint32_t)((offset & 0xFFFFFFFF00000000LL) >> 0x20);
+  pl.Offset = (uint32_t)(offset & 0xFFFFFFFFLL);
+
+  HANDLE handle = (HANDLE)_get_osfhandle(pFile->fd);
+  SetLastError(0);
+  bool result = WriteFile(handle, buf, count, &ret, &ol);
+  if (!result) {
+    errno = GetLastError();
+    return -1;
+  }
 #else
   int64_t ret = pwrite(pFile->fd, buf, count, offset);
 #endif
diff --git a/source/os/src/osThread.c b/source/os/src/osThread.c
index 4c4e22bdd9..2080677140 100644
--- a/source/os/src/osThread.c
+++ b/source/os/src/osThread.c
@@ -84,34 +84,97 @@ int32_t taosThreadAttrSetStackSize(TdThreadAttr *attr, size_t stacksize) {
 
 int32_t taosThreadCancel(TdThread thread) { return pthread_cancel(thread); }
 
-int32_t taosThreadCondDestroy(TdThreadCond *cond) { return pthread_cond_destroy(cond); }
+int32_t taosThreadCondDestroy(TdThreadCond *cond) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_cond_destroy(cond);
+#endif
+}
 
-int32_t taosThreadCondInit(TdThreadCond *cond, const TdThreadCondAttr *attr) { return pthread_cond_init(cond, attr); }
+int32_t taosThreadCondInit(TdThreadCond *cond, const TdThreadCondAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  InitializeConditionVariable(cond);
+  return 0;
+#else
+  return pthread_cond_init(cond, attr);
+#endif
+}
 
-int32_t taosThreadCondSignal(TdThreadCond *cond) { return pthread_cond_signal(cond); }
+int32_t taosThreadCondSignal(TdThreadCond *cond) {
+#ifdef __USE_WIN_THREAD
+  WakeConditionVariable(cond);
+  return 0;
+#else
+  return pthread_cond_signal(cond);
+#endif
+}
 
-int32_t taosThreadCondBroadcast(TdThreadCond *cond) { return pthread_cond_broadcast(cond); }
+int32_t taosThreadCondBroadcast(TdThreadCond *cond) {
+#ifdef __USE_WIN_THREAD
+  WakeAllConditionVariable(cond);
+#else
+  return pthread_cond_broadcast(cond);
+#endif
+}
 
 int32_t taosThreadCondWait(TdThreadCond *cond, TdThreadMutex *mutex) {
+#ifdef __USE_WIN_THREAD
+  if (!SleepConditionVariableCS(cond, mutex, INFINITE)) {
+    return EINVAL;
+  }
+  return 0;
+#else
   THREAD_PTR_CHECK(mutex)
   return pthread_cond_wait(cond, mutex);
+#endif
 }
 
 int32_t taosThreadCondTimedWait(TdThreadCond *cond, TdThreadMutex *mutex, const struct timespec *abstime) {
+#ifdef __USE_WIN_THREAD
+  if (!abstime) return EINVAL;
+  if (SleepConditionVariableCS(cond, mutex, (DWORD)(abstime->tv_sec * 1e3 + abstime->tv_nsec / 1e6))) return 0;
+  if (GetLastError() == ERROR_TIMEOUT) {
+    return ETIMEDOUT;
+  }
+  return EINVAL;
+#else
   THREAD_PTR_CHECK(mutex)
   return pthread_cond_timedwait(cond, mutex, abstime);
+#endif
 }
 
-int32_t taosThreadCondAttrDestroy(TdThreadCondAttr *attr) { return pthread_condattr_destroy(attr); }
+int32_t taosThreadCondAttrDestroy(TdThreadCondAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_condattr_destroy(attr);
+#endif
+}
 
 int32_t taosThreadCondAttrGetPshared(const TdThreadCondAttr *attr, int32_t *pshared) {
+#ifdef __USE_WIN_THREAD
+  if (pshared) *pshared = PTHREAD_PROCESS_PRIVATE;
+  return 0;
+#else
   return pthread_condattr_getpshared(attr, pshared);
+#endif
 }
 
-int32_t taosThreadCondAttrInit(TdThreadCondAttr *attr) { return pthread_condattr_init(attr); }
+int32_t taosThreadCondAttrInit(TdThreadCondAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_condattr_init(attr);
+#endif
+}
 
 int32_t taosThreadCondAttrSetPshared(TdThreadCondAttr *attr, int32_t pshared) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
   return pthread_condattr_setpshared(attr, pshared);
+#endif
 }
 
 int32_t taosThreadDetach(TdThread thread) { return pthread_detach(thread); }
@@ -142,17 +205,39 @@ int32_t taosThreadKill(TdThread thread, int32_t sig) { return pthread_kill(threa
 // }
 
 int32_t taosThreadMutexDestroy(TdThreadMutex *mutex) {
+#ifdef __USE_WIN_THREAD
+  DeleteCriticalSection(mutex);
+  return 0;
+#else
   THREAD_PTR_CHECK(mutex)
   return pthread_mutex_destroy(mutex);
+#endif
 }
 
 int32_t taosThreadMutexInit(TdThreadMutex *mutex, const TdThreadMutexAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  /**
+   * Windows Server 2003 and Windows XP:  In low memory situations, InitializeCriticalSection can raise a
+   * STATUS_NO_MEMORY exception. Starting with Windows Vista, this exception was eliminated and
+   * InitializeCriticalSection always succeeds, even in low memory situations.
+   */
+  InitializeCriticalSection(mutex);
+  return 0;
+#else
   return pthread_mutex_init(mutex, attr);
+#endif
 }
 
 int32_t taosThreadMutexLock(TdThreadMutex *mutex) {
+#ifdef __USE_WIN_THREAD
+  EnterCriticalSection(mutex);
+  return 0;
+#else
   THREAD_PTR_CHECK(mutex)
-  return pthread_mutex_lock(mutex);
+  int result = pthread_mutex_lock(mutex);
+  assert(result == 0);
+  return result;
+#endif
 }
 
 // int32_t taosThreadMutexTimedLock(TdThreadMutex * mutex, const struct timespec *abstime) {
@@ -160,19 +245,42 @@ int32_t taosThreadMutexLock(TdThreadMutex *mutex) {
 // }
 
 int32_t taosThreadMutexTryLock(TdThreadMutex *mutex) {
-   THREAD_PTR_CHECK(mutex)
-   return pthread_mutex_trylock(mutex);
+#ifdef __USE_WIN_THREAD
+  if (TryEnterCriticalSection(mutex)) return 0;
+  return EBUSY;
+#else
+  THREAD_PTR_CHECK(mutex)
+  return pthread_mutex_trylock(mutex);
+#endif
 }
 
 int32_t taosThreadMutexUnlock(TdThreadMutex *mutex) {
+#ifdef __USE_WIN_THREAD
+  LeaveCriticalSection(mutex);
+  return 0;
+#else
   THREAD_PTR_CHECK(mutex)
-  return pthread_mutex_unlock(mutex);
+  int result = pthread_mutex_unlock(mutex);
+  assert(result == 0);
+  return result;
+#endif
 }
 
-int32_t taosThreadMutexAttrDestroy(TdThreadMutexAttr *attr) { return pthread_mutexattr_destroy(attr); }
+int32_t taosThreadMutexAttrDestroy(TdThreadMutexAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_mutexattr_destroy(attr);
+#endif
+}
 
 int32_t taosThreadMutexAttrGetPshared(const TdThreadMutexAttr *attr, int32_t *pshared) {
+#ifdef __USE_WIN_THREAD
+  if (pshared) *pshared = PTHREAD_PROCESS_PRIVATE;
+  return 0;
+#else
   return pthread_mutexattr_getpshared(attr, pshared);
+#endif
 }
 
 // int32_t taosThreadMutexAttrGetRobust(const TdThreadMutexAttr * attr, int32_t * robust) {
@@ -180,13 +288,28 @@ int32_t taosThreadMutexAttrGetPshared(const TdThreadMutexAttr *attr, int32_t *ps
 // }
 
 int32_t taosThreadMutexAttrGetType(const TdThreadMutexAttr *attr, int32_t *kind) {
+#ifdef __USE_WIN_THREAD
+  if (kind) *kind = PTHREAD_MUTEX_NORMAL;
+  return 0;
+#else
   return pthread_mutexattr_gettype(attr, kind);
+#endif
 }
 
-int32_t taosThreadMutexAttrInit(TdThreadMutexAttr *attr) { return pthread_mutexattr_init(attr); }
+int32_t taosThreadMutexAttrInit(TdThreadMutexAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_mutexattr_init(attr);
+#endif
+}
 
 int32_t taosThreadMutexAttrSetPshared(TdThreadMutexAttr *attr, int32_t pshared) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
   return pthread_mutexattr_setpshared(attr, pshared);
+#endif
 }
 
 // int32_t taosThreadMutexAttrSetRobust(TdThreadMutexAttr * attr, int32_t robust) {
@@ -194,20 +317,46 @@ int32_t taosThreadMutexAttrSetPshared(TdThreadMutexAttr *attr, int32_t pshared)
 // }
 
 int32_t taosThreadMutexAttrSetType(TdThreadMutexAttr *attr, int32_t kind) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
   return pthread_mutexattr_settype(attr, kind);
+#endif
 }
 
 int32_t taosThreadOnce(TdThreadOnce *onceControl, void (*initRoutine)(void)) {
   return pthread_once(onceControl, initRoutine);
 }
 
-int32_t taosThreadRwlockDestroy(TdThreadRwlock *rwlock) { return pthread_rwlock_destroy(rwlock); }
-
-int32_t taosThreadRwlockInit(TdThreadRwlock *rwlock, const TdThreadRwlockAttr *attr) {
-  return pthread_rwlock_init(rwlock, attr);
+int32_t taosThreadRwlockDestroy(TdThreadRwlock *rwlock) {
+#ifdef __USE_WIN_THREAD
+  /* SRWLock does not need explicit destruction so long as there are no waiting threads
+   * See: https://docs.microsoft.com/windows/win32/api/synchapi/nf-synchapi-initializesrwlock#remarks
+   */
+  return 0;
+#else
+  return pthread_rwlock_destroy(rwlock);
+#endif
 }
 
-int32_t taosThreadRwlockRdlock(TdThreadRwlock *rwlock) { return pthread_rwlock_rdlock(rwlock); }
+int32_t taosThreadRwlockInit(TdThreadRwlock *rwlock, const TdThreadRwlockAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  memset(rwlock, 0, sizeof(*rwlock));
+  InitializeSRWLock(&rwlock->lock);
+  return 0;
+#else
+  return pthread_rwlock_init(rwlock, attr);
+#endif
+}
+
+int32_t taosThreadRwlockRdlock(TdThreadRwlock *rwlock) {
+#ifdef __USE_WIN_THREAD
+  AcquireSRWLockShared(&rwlock->lock);
+  return 0;
+#else
+  return pthread_rwlock_rdlock(rwlock);
+#endif
+}
 
 // int32_t taosThreadRwlockTimedRdlock(TdThreadRwlock * rwlock, const struct timespec *abstime) {
 //   return pthread_rwlock_timedrdlock(rwlock, abstime);
@@ -217,24 +366,79 @@ int32_t taosThreadRwlockRdlock(TdThreadRwlock *rwlock) { return pthread_rwlock_r
 //   return pthread_rwlock_timedwrlock(rwlock, abstime);
 // }
 
-int32_t taosThreadRwlockTryRdlock(TdThreadRwlock *rwlock) { return pthread_rwlock_tryrdlock(rwlock); }
-
-int32_t taosThreadRwlockTryWrlock(TdThreadRwlock *rwlock) { return pthread_rwlock_trywrlock(rwlock); }
-
-int32_t taosThreadRwlockUnlock(TdThreadRwlock *rwlock) { return pthread_rwlock_unlock(rwlock); }
-
-int32_t taosThreadRwlockWrlock(TdThreadRwlock *rwlock) { return pthread_rwlock_wrlock(rwlock); }
-
-int32_t taosThreadRwlockAttrDestroy(TdThreadRwlockAttr *attr) { return pthread_rwlockattr_destroy(attr); }
-
-int32_t taosThreadRwlockAttrGetPshared(const TdThreadRwlockAttr *attr, int32_t *pshared) {
-  return pthread_rwlockattr_getpshared(attr, pshared);
+int32_t taosThreadRwlockTryRdlock(TdThreadRwlock *rwlock) {
+#ifdef __USE_WIN_THREAD
+  if (!TryAcquireSRWLockShared(&rwlock->lock)) return EBUSY;
+  return 0;
+#else
+  return pthread_rwlock_tryrdlock(rwlock);
+#endif
 }
 
-int32_t taosThreadRwlockAttrInit(TdThreadRwlockAttr *attr) { return pthread_rwlockattr_init(attr); }
+int32_t taosThreadRwlockTryWrlock(TdThreadRwlock *rwlock) {
+#ifdef __USE_WIN_THREAD
+  if (!TryAcquireSRWLockExclusive(&rwlock->lock)) return EBUSY;
+  atomic_store_8(&rwlock->excl, 1);
+  return 0;
+#else
+  return pthread_rwlock_trywrlock(rwlock);
+#endif
+}
+
+int32_t taosThreadRwlockUnlock(TdThreadRwlock *rwlock) {
+#ifdef __USE_WIN_THREAD
+  if (1 == atomic_val_compare_exchange_8(&rwlock->excl, 1, 0)) {
+    ReleaseSRWLockExclusive(&rwlock->lock);
+  } else {
+    ReleaseSRWLockShared(&rwlock->lock);
+  }
+  return 0;
+#else
+  return pthread_rwlock_unlock(rwlock);
+#endif
+}
+
+int32_t taosThreadRwlockWrlock(TdThreadRwlock *rwlock) {
+#ifdef __USE_WIN_THREAD
+  AcquireSRWLockExclusive(&rwlock->lock);
+  atomic_store_8(&rwlock->excl, 1);
+  return 0;
+#else
+  return pthread_rwlock_wrlock(rwlock);
+#endif
+}
+
+int32_t taosThreadRwlockAttrDestroy(TdThreadRwlockAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_rwlockattr_destroy(attr);
+#endif
+}
+
+int32_t taosThreadRwlockAttrGetPshared(const TdThreadRwlockAttr *attr, int32_t *pshared) {
+#ifdef __USE_WIN_THREAD
+  if (pshared) *pshared = PTHREAD_PROCESS_PRIVATE;
+  return 0;
+#else
+  return pthread_rwlockattr_getpshared(attr, pshared);
+#endif
+}
+
+int32_t taosThreadRwlockAttrInit(TdThreadRwlockAttr *attr) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
+  return pthread_rwlockattr_init(attr);
+#endif
+}
 
 int32_t taosThreadRwlockAttrSetPshared(TdThreadRwlockAttr *attr, int32_t pshared) {
+#ifdef __USE_WIN_THREAD
+  return 0;
+#else
   return pthread_rwlockattr_setpshared(attr, pshared);
+#endif
 }
 
 TdThread taosThreadSelf(void) { return pthread_self(); }
@@ -297,4 +501,4 @@ int32_t taosThreadSpinUnlock(TdThreadSpinlock *lock) {
 
 void taosThreadTestCancel(void) { return pthread_testcancel(); }
 
-void taosThreadClear(TdThread *thread) { memset(thread, 0, sizeof(TdThread)); }
\ No newline at end of file
+void taosThreadClear(TdThread *thread) { memset(thread, 0, sizeof(TdThread)); }
diff --git a/source/util/src/tcache.c b/source/util/src/tcache.c
index 28d9b412a0..392ac5d8b2 100644
--- a/source/util/src/tcache.c
+++ b/source/util/src/tcache.c
@@ -25,7 +25,7 @@
 
 static TdThread      cacheRefreshWorker = {0};
 static TdThreadOnce  cacheThreadInit = PTHREAD_ONCE_INIT;
-static TdThreadMutex guard = TD_PTHREAD_MUTEX_INITIALIZER;
+static TdThreadMutex guard;
 static SArray       *pCacheArrayList = NULL;
 static bool          stopRefreshWorker = false;
 static bool          refreshWorkerNormalStopped = false;
@@ -155,6 +155,8 @@ static void *taosCacheTimedRefresh(void *handle);
 static void doInitRefreshThread(void) {
   pCacheArrayList = taosArrayInit(4, POINTER_BYTES);
 
+  taosThreadMutexInit(&guard, NULL);
+
   TdThreadAttr thattr;
   taosThreadAttrInit(&thattr);
   taosThreadAttrSetDetachState(&thattr, PTHREAD_CREATE_JOINABLE);