diff --git a/dlls/ntdll/tests/wow64.c b/dlls/ntdll/tests/wow64.c
index be2f2138933..9e09c60c32c 100644
--- a/dlls/ntdll/tests/wow64.c
+++ b/dlls/ntdll/tests/wow64.c
@@ -874,7 +874,7 @@ static void test_nt_wow64(void)
             ok( status == STATUS_PARTIAL_COPY || broken( status == STATUS_ACCESS_VIOLATION ),
                 "NtWow64WriteVirtualMemory64 failed %x\n", status );
             todo_wine
-            ok( !res, "wrong size %s\n", wine_dbgstr_longlong(res) );
+            ok( !res || broken(res) /* win10 1709 */, "wrong size %s\n", wine_dbgstr_longlong(res) );
         }
         ptr = 0x9876543210ull;
         status = pNtWow64AllocateVirtualMemory64( process, &ptr, 0, &size,
@@ -882,7 +882,8 @@ static void test_nt_wow64(void)
         todo_wine
         ok( !status || broken( status == STATUS_CONFLICTING_ADDRESSES ),
             "NtWow64AllocateVirtualMemory64 failed %x\n", status );
-        if (!status) ok( ptr == 0x9876540000ull, "wrong ptr %s\n", wine_dbgstr_longlong(ptr) );
+        if (!status) ok( ptr == 0x9876540000ull || broken(ptr == 0x76540000), /* win 8.1 */
+                         "wrong ptr %s\n", wine_dbgstr_longlong(ptr) );
         ptr = 0;
         status = pNtWow64AllocateVirtualMemory64( GetCurrentProcess(), &ptr, 0, &size,
                                                   MEM_RESERVE | MEM_COMMIT, PAGE_READONLY );
@@ -1027,15 +1028,27 @@ static void test_init_block(void)
             CHECK_FUNC( init_block[5], "KiUserExceptionDispatcher" );
             CHECK_FUNC( init_block[6], "KiUserApcDispatcher" );
             CHECK_FUNC( init_block[7], "KiUserCallbackDispatcher" );
-            CHECK_FUNC( init_block[8], "ExpInterlockedPopEntrySListFault" );
-            CHECK_FUNC( init_block[9], "ExpInterlockedPopEntrySListResume" );
-            CHECK_FUNC( init_block[10], "ExpInterlockedPopEntrySListEnd" );
-            CHECK_FUNC( init_block[11], "RtlUserThreadStart" );
-            CHECK_FUNC( init_block[12], "RtlpQueryProcessDebugInformationRemote" );
-            ok( init_block[13] == (ULONG_PTR)ntdll, "got %p for ntdll %p\n",
-                (void *)(ULONG_PTR)init_block[13], ntdll );
-            CHECK_FUNC( init_block[14], "LdrSystemDllInitBlock" );
-            size = 15 * sizeof(*init_block);
+            if (GetProcAddress( ntdll, "ExpInterlockedPopEntrySListFault" ))
+            {
+                CHECK_FUNC( init_block[8], "ExpInterlockedPopEntrySListFault" );
+                CHECK_FUNC( init_block[9], "ExpInterlockedPopEntrySListResume" );
+                CHECK_FUNC( init_block[10], "ExpInterlockedPopEntrySListEnd" );
+                CHECK_FUNC( init_block[11], "RtlUserThreadStart" );
+                CHECK_FUNC( init_block[12], "RtlpQueryProcessDebugInformationRemote" );
+                ok( init_block[13] == (ULONG_PTR)ntdll, "got %p for ntdll %p\n",
+                    (void *)(ULONG_PTR)init_block[13], ntdll );
+                CHECK_FUNC( init_block[14], "LdrSystemDllInitBlock" );
+                size = 15 * sizeof(*init_block);
+            }
+            else  /* win10 1607 */
+            {
+                CHECK_FUNC( init_block[8], "RtlUserThreadStart" );
+                CHECK_FUNC( init_block[9], "RtlpQueryProcessDebugInformationRemote" );
+                ok( init_block[10] == (ULONG_PTR)ntdll, "got %p for ntdll %p\n",
+                    (void *)(ULONG_PTR)init_block[10], ntdll );
+                CHECK_FUNC( init_block[11], "LdrSystemDllInitBlock" );
+                size = 12 * sizeof(*init_block);
+            }
             break;
         case 0xe0:  /* win10 1809 */
         case 0xf0:  /* win10 2004 */