diff --git a/Release/include/cpprest/containerstream.h b/Release/include/cpprest/containerstream.h
index 6e949a75e..02fe55459 100644
--- a/Release/include/cpprest/containerstream.h
+++ b/Release/include/cpprest/containerstream.h
@@ -399,12 +399,7 @@ class basic_container_buffer : public streams::details::streambuf_state_manager<
         auto readBegin = std::begin(m_data) + m_current_position;
         auto readEnd = std::begin(m_data) + newPos;
 
-#if defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL != 0
-        // Avoid warning C4996: Use checked iterators under SECURE_SCL
-        std::copy(readBegin, readEnd, stdext::checked_array_iterator<_CharType*>(ptr, count));
-#else
         std::copy(readBegin, readEnd, ptr);
-#endif // _WIN32
 
         if (advance)
         {
diff --git a/Release/include/cpprest/producerconsumerstream.h b/Release/include/cpprest/producerconsumerstream.h
index 3487c4606..c33a4af2a 100644
--- a/Release/include/cpprest/producerconsumerstream.h
+++ b/Release/include/cpprest/producerconsumerstream.h
@@ -439,12 +439,7 @@ class basic_producer_consumer_buffer : public streams::details::streambuf_state_
             _CharType* beg = rbegin();
             _CharType* end = rbegin() + countRead;
 
-#if defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL != 0
-            // Avoid warning C4996: Use checked iterators under SECURE_SCL
-            std::copy(beg, end, stdext::checked_array_iterator<_CharType*>(dest, count));
-#else
             std::copy(beg, end, dest);
-#endif // _WIN32
 
             if (advance)
             {
@@ -462,12 +457,7 @@ class basic_producer_consumer_buffer : public streams::details::streambuf_state_
 
             const _CharType* srcEnd = src + countWritten;
 
-#if defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL != 0
-            // Avoid warning C4996: Use checked iterators under SECURE_SCL
-            std::copy(src, srcEnd, stdext::checked_array_iterator<_CharType*>(wbegin(), static_cast<size_t>(avail)));
-#else
             std::copy(src, srcEnd, wbegin());
-#endif // _WIN32
 
             update_write_head(countWritten);
             return countWritten;
diff --git a/Release/include/cpprest/rawptrstream.h b/Release/include/cpprest/rawptrstream.h
index 1f15ecbe7..40842a559 100644
--- a/Release/include/cpprest/rawptrstream.h
+++ b/Release/include/cpprest/rawptrstream.h
@@ -439,12 +439,7 @@ class basic_rawptr_buffer : public streams::details::streambuf_state_manager<_Ch
         auto readBegin = m_data + m_current_position;
         auto readEnd = m_data + newPos;
 
-#if defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL != 0
-        // Avoid warning C4996: Use checked iterators under SECURE_SCL
-        std::copy(readBegin, readEnd, stdext::checked_array_iterator<_CharType*>(ptr, count));
-#else
         std::copy(readBegin, readEnd, ptr);
-#endif // _WIN32
 
         if (advance)
         {
@@ -465,13 +460,8 @@ class basic_rawptr_buffer : public streams::details::streambuf_state_manager<_Ch
 
         if (newSize > m_size) throw std::runtime_error("Writing past the end of the buffer");
 
-            // Copy the data
-#if defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL != 0
-        // Avoid warning C4996: Use checked iterators under SECURE_SCL
-        std::copy(ptr, ptr + count, stdext::checked_array_iterator<_CharType*>(m_data, m_size, m_current_position));
-#else
+        // Copy the data
         std::copy(ptr, ptr + count, m_data + m_current_position);
-#endif // _WIN32
 
         // Update write head and satisfy pending reads if any
         update_current_position(newSize);