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---
title: "Windows thread priority. SeIncreaseBasePriorityPrivilege required to play in the"
author: "NOTimothyLottes"
handle: "@NOTimothyLottes"
post_url: "https://x.com/NOTimothyLottes/status/2061416116694442141"
post_id: "2061416116694442141"
timestamp: "2026-06-01 11:54:36"
post_count: 4
reply_count: 2
repost_count: 0
like_count: 10
view_count: 1196
---

# @NOTimothyLottes — Windows thread priority. SeIncreaseBasePriorityPrivilege required to play in the

## Post 1 (2026-06-01 11:54:36)

Windows thread priority. SeIncreaseBasePriorityPrivilege required to play in the (fake)"Realtime" class -BUT- apparently there is AvSetMmThreadCharacteristics() for "Pro Audio" and AvSetMmThreadPriority() which can bring up priority into realtime. Curious if games using today?

## Post 2 (2026-06-01 11:56:24) — reply to Post 1

Either way NtSetInformationThread() seems to be the way to just set {1-15} (non-realtime class) priority directly without the silly clamp(priorityClassBase+threadPriority,1,15) business

## Post 3 (2026-06-02 03:59:06) — reply to Post 1

@NOTimothyLottes I don’t think your even suppose to change your thread’s priority in general anymore, it just messes with scheduling.

## Post 4 (2026-06-02 10:32:37) — reply to Post 3

@iamwhosiam Try using low latency pro audio tools and disabling the app’s authorization for high priority scheduling