diff --git a/src/windows-emulator/syscalls.cpp b/src/windows-emulator/syscalls.cpp
index 1a126832..5ac9f715 100644
--- a/src/windows-emulator/syscalls.cpp
+++ b/src/windows-emulator/syscalls.cpp
@@ -350,6 +350,7 @@ namespace syscalls
                                             uint64_t token_information, ULONG token_information_length,
                                             emulator_object<ULONG> return_length);
     NTSTATUS handle_NtQuerySecurityAttributesToken();
+    NTSTATUS handle_NtAdjustPrivilegesToken();
 
     NTSTATUS handle_NtQueryPerformanceCounter(const syscall_context& c, const emulator_object<LARGE_INTEGER> performance_counter,
                                               const emulator_object<LARGE_INTEGER> performance_frequency)
@@ -1067,6 +1068,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
     add_handler(NtOpenProcessToken);
     add_handler(NtOpenProcessTokenEx);
     add_handler(NtQuerySecurityAttributesToken);
+    add_handler(NtAdjustPrivilegesToken);
     add_handler(NtQueryLicenseValue);
     add_handler(NtTestAlert);
     add_handler(NtContinue);
diff --git a/src/windows-emulator/syscalls/process.cpp b/src/windows-emulator/syscalls/process.cpp
index 5c79929d..ad41c16b 100644
--- a/src/windows-emulator/syscalls/process.cpp
+++ b/src/windows-emulator/syscalls/process.cpp
@@ -184,7 +184,8 @@ namespace syscalls
             || info_class == ProcessDefaultHardErrorMode                 //
             || info_class == ProcessRaiseUMExceptionOnInvalidHandleClose //
             || info_class == ProcessDynamicFunctionTableInformation      //
-            || info_class == ProcessPriorityBoost)
+            || info_class == ProcessPriorityBoost                        //
+            || info_class == ProcessPriorityClassEx)
         {
             return STATUS_SUCCESS;
         }
diff --git a/src/windows-emulator/syscalls/token.cpp b/src/windows-emulator/syscalls/token.cpp
index 00146eb8..3fbdb0b0 100644
--- a/src/windows-emulator/syscalls/token.cpp
+++ b/src/windows-emulator/syscalls/token.cpp
@@ -366,4 +366,10 @@ namespace syscalls
         // puts("NtQuerySecurityAttributesToken not supported");
         return STATUS_NOT_SUPPORTED;
     }
+
+    NTSTATUS handle_NtAdjustPrivilegesToken()
+    {
+        // puts("NtQuerySecurityAttributesToken not supported");
+        return STATUS_NOT_SUPPORTED;
+    }
 }