diff --git a/include/mimalloc.h b/include/mimalloc.h
index d14238a9..9106fdea 100644
--- a/include/mimalloc.h
+++ b/include/mimalloc.h
@@ -231,7 +231,6 @@ typedef enum mi_option_e {
   mi_option_page_reset,
   mi_option_cache_reset,
   mi_option_reset_decommits,
-  mi_option_reset_discards,
   _mi_option_last
 } mi_option_t;
 
diff --git a/src/options.c b/src/options.c
index f6059ae5..de1ef079 100644
--- a/src/options.c
+++ b/src/options.c
@@ -64,8 +64,7 @@ static mi_option_desc_t options[_mi_option_last] =
   { 0, UNINIT, MI_OPTION(large_os_pages) },      // use large OS pages, use only with eager commit to prevent fragmentation of VMA's
   { 0, UNINIT, MI_OPTION(page_reset) },
   { 0, UNINIT, MI_OPTION(cache_reset) },
-  { 0, UNINIT, MI_OPTION(reset_decommits) },     // note: cannot enable this if secure is on
-  { 0, UNINIT, MI_OPTION(reset_discards) }       // note: cannot enable this if secure is on
+  { 0, UNINIT, MI_OPTION(reset_decommits) }      // note: cannot enable this if secure is on
 };
 
 static void mi_option_init(mi_option_desc_t* desc);
diff --git a/src/os.c b/src/os.c
index 506e1e6d..7afe447e 100644
--- a/src/os.c
+++ b/src/os.c
@@ -84,11 +84,9 @@ static size_t mi_os_good_alloc_size(size_t size, size_t alignment) {
 #if defined(_WIN32)
 // We use VirtualAlloc2 for aligned allocation, but it is only supported on Windows 10 and Windows Server 2016.
 // So, we need to look it up dynamically to run on older systems. (use __stdcall for 32-bit compatibility)
-// Same for DiscardVirtualMemory. (hide MEM_EXTENDED_PARAMETER to compile with older SDK's)
+// (hide MEM_EXTENDED_PARAMETER to compile with older SDK's)
 typedef PVOID(__stdcall *PVirtualAlloc2)(HANDLE, PVOID, SIZE_T, ULONG, ULONG, /* MEM_EXTENDED_PARAMETER* */ void*, ULONG);
-typedef DWORD(__stdcall *PDiscardVirtualMemory)(PVOID,SIZE_T);
 static PVirtualAlloc2 pVirtualAlloc2 = NULL;
-static PDiscardVirtualMemory pDiscardVirtualMemory = NULL;
 
 void _mi_os_init(void) {
   // get the page size
@@ -103,7 +101,6 @@ void _mi_os_init(void) {
     // use VirtualAlloc2FromApp if possible as it is available to Windows store apps
     pVirtualAlloc2 = (PVirtualAlloc2)GetProcAddress(hDll, "VirtualAlloc2FromApp");
     if (pVirtualAlloc2==NULL) pVirtualAlloc2 = (PVirtualAlloc2)GetProcAddress(hDll, "VirtualAlloc2");
-    pDiscardVirtualMemory = (PDiscardVirtualMemory)GetProcAddress(hDll, "DiscardVirtualMemory");
     FreeLibrary(hDll);
   }
   // Try to see if large OS pages are supported
@@ -558,17 +555,9 @@ static bool mi_os_resetx(void* addr, size_t size, bool reset, mi_stats_t* stats)
 
 #if defined(_WIN32)
   // Testing shows that for us (on `malloc-large`) MEM_RESET is 2x faster than DiscardVirtualMemory
-  // (but this is for an access pattern that immediately reuses the memory)
-  if (mi_option_is_enabled(mi_option_reset_discards) && pDiscardVirtualMemory != NULL) {
-    DWORD ok = (*pDiscardVirtualMemory)(start, csize);
-    mi_assert_internal(ok == ERROR_SUCCESS);
-    if (ok != ERROR_SUCCESS) return false;
-  }
-  else {
-    void* p = VirtualAlloc(start, csize, MEM_RESET, PAGE_READWRITE);
-    mi_assert_internal(p == start);
-    if (p != start) return false;
-  }
+  void* p = VirtualAlloc(start, csize, MEM_RESET, PAGE_READWRITE);
+  mi_assert_internal(p == start);
+  if (p != start) return false;
 #else
 #if defined(MADV_FREE)
   static int advice = MADV_FREE;