diff --git a/docs/GETTING_STARTED.md b/docs/GETTING_STARTED.md
index 8d10ae656..9a92c423b 100644
--- a/docs/GETTING_STARTED.md
+++ b/docs/GETTING_STARTED.md
@@ -15,7 +15,8 @@ How to build and run the mod from source. If you only want to play, read
   Adoptium, Microsoft, and Java folders under Program Files.
 - **Visual Studio 2022 Build Tools** with the Desktop development with C++
   workload (MSVC v143). Cross-building the ARM64 bridge additionally needs the
-  toolset pinned in `rtxremix-java/native/build_native.bat` (currently 14.44).
+  MSVC ARM64 build tools for some installed toolset; `build_native.bat` uses
+  the default toolset when it has them, otherwise the newest one that does.
 - **Git.** Everything is in the clone except the native runtime and the two
   large runtime textures, which the build pulls through Packman on first use.
 - **uv 0.13 or newer and Python 3.15 or newer**, for the developer tools that
@@ -491,7 +492,7 @@ removes its stale registration.
 
 | Symptom | Cause |
 |---|---|
-| `vswhere.exe not found` or `vcvarsall.bat failed` | Visual Studio Build Tools missing, or without the Desktop C++ workload. ARM64 also needs toolset 14.44 |
+| `vswhere.exe not found` or `vcvarsall.bat failed` | Visual Studio Build Tools missing, or without the Desktop C++ workload |
 | `JAVA_HOME is not set`, or `jni.h not found` | `JAVA_HOME` unset or pointing at a JRE rather than a JDK 21 |
 | Gradle cannot fetch the SDK | Check network access to the Packman remote, or stage a matching local runtime. See [Get A Runtime](#get-a-runtime) |
 | A launch reports that Prism Launcher is not installed | Install it from [prismlauncher.org](https://prismlauncher.org), or point `prism.executable` in `tools/config.local.json` at its `prismlauncher.exe` |
@@ -509,7 +510,7 @@ removes its stale registration.
 | Empty or partial scene on first launch | Shader compilation. Wait for it to settle before reporting a defect |
 | Frame-time spikes at high render distance | Garbage collection is one possible cause. Every launch gives the Prism instance the tuned JVM arguments and their heap limit; check that `launch.jvmArgs` does not override them |
 | A clone or checkout reports `Filename too long` | Enable `git config --global core.longpaths true` before cloning, or choose a shorter checkout path |
-| `package` cannot find the ARM64 toolset | Install the version pinned by `build_native.bat`, or use `package -Parch=win64` for a single-architecture artifact |
+| `No MSVC toolset ... has the ARM64 C++ libraries` | Add the MSVC ARM64 build tools in the Visual Studio Installer, or use `package -Parch=win64` for a single-architecture artifact |
 | Initialization reports `DRIVER_VERSION_BELOW_MINIMUM` | Update the driver. The minimum is a capability gate; lowering `dxvk.nvidiaMinDriver` can enable unsupported paths and cause GPU faults |
 | `Startup` unexpectedly returns `REMIX_DEVICE_WAS_NOT_REGISTERED` after an API change | Check header, bridge and runtime together for a mismatched `remixapi_Interface` layout before continuing native calls |
 | `/rtx off` is slower than `/rtx on` | The off path renders vanilla GL at full resolution through the Remix swapchain; the on path can use DLSS's lower internal resolution. The toggle is not a standalone vanilla performance baseline |
diff --git a/rtxremix-java/native/build_native.bat b/rtxremix-java/native/build_native.bat
index 360d44506..3d7bbff16 100644
--- a/rtxremix-java/native/build_native.bat
+++ b/rtxremix-java/native/build_native.bat
@@ -19,17 +19,14 @@ REM ── Target architecture ────────────────
 set "ARCH=%~1"
 if "%ARCH%"=="" set "ARCH=x64"
 
-REM ── Map ARCH to vcvarsall target. Pin toolset only when cross-compiling
-REM    for ARM64: cross-compiling needs the ARM64 CRT libraries, which ship
-REM    with the 14.44 toolset (not the default 14.34). x64 builds use whatever
-REM    default toolset is installed, so dev machines with any recent VS
-REM    install keep working without needing 14.44 specifically.
+REM ── Map ARCH to vcvarsall target. x64 builds use the default toolset. An
+REM    ARM64 build picks its toolset after Visual Studio is found, by where
+REM    the ARM64 C++ libraries are installed (see :pick_arm64_toolset).
+set "VCVARS_EXTRA_ARGS="
 if /I "%ARCH%"=="x64" (
     set "VCARCH=x64"
-    set "VCVARS_EXTRA_ARGS="
 ) else if /I "%ARCH%"=="arm64" (
     set "VCARCH=x64_arm64"
-    set "VCVARS_EXTRA_ARGS=-vcvars_ver=14.44"
 ) else (
     echo ERROR: Unknown architecture: %ARCH%. Use x64 or arm64.
     exit /b 1
@@ -48,11 +45,16 @@ if not defined VS_PATH (
     exit /b 1
 )
 
+if /I "%ARCH%"=="arm64" (
+    call :pick_arm64_toolset
+    if errorlevel 1 exit /b 1
+)
+
 REM ── Set up MSVC environment for target arch ─────────────────────────
 call "%VS_PATH%\VC\Auxiliary\Build\vcvarsall.bat" %VCARCH% %VCVARS_EXTRA_ARGS% >nul 2>&1
 if errorlevel 1 (
-    echo ERROR: vcvarsall.bat failed. Ensure MSVC v143 C++ workload is installed.
-    if defined VCVARS_EXTRA_ARGS echo        ARM64 builds additionally require toolset 14.44.
+    echo ERROR: vcvarsall.bat failed. Ensure the MSVC C++ workload is installed.
+    if defined VCVARS_EXTRA_ARGS echo        The ARM64 build asked for: %VCVARS_EXTRA_ARGS%
     exit /b 1
 )
 
@@ -99,3 +101,37 @@ if errorlevel 1 (
 
 echo remixbridge.dll built successfully: %OUT_DIR%\remixbridge.dll
 endlocal
+exit /b 0
+
+REM ── ARM64 toolset ────────────────────────────────────────────────────
+REM  /LD links the static C++ runtime, so an ARM64 build needs a toolset
+REM  with lib\arm64\libcpmt.lib. Visual Studio 2026 installs the ARM64
+REM  libraries only for its default toolset, while a Visual Studio 2022
+REM  default such as 14.34 may lack them where a newer side-by-side
+REM  toolset has them. Use the default when it has them, otherwise the
+REM  newest toolset that does, pinned through -vcvars_ver.
+:pick_arm64_toolset
+set "MSVC_ROOT=%VS_PATH%\VC\Tools\MSVC"
+set "DEFAULT_TOOLSET="
+set "ARM64_TOOLSET="
+set "DEFAULT_TOOLSET_FILE=%VS_PATH%\VC\Auxiliary\Build\Microsoft.VCToolsVersion.default.txt"
+if exist "%DEFAULT_TOOLSET_FILE%" (
+    for /f "usebackq tokens=1" %%t in ("%DEFAULT_TOOLSET_FILE%") do set "DEFAULT_TOOLSET=%%t"
+)
+if defined DEFAULT_TOOLSET (
+    if exist "%MSVC_ROOT%\!DEFAULT_TOOLSET!\lib\arm64\libcpmt.lib" (
+        echo ARM64 toolset: !DEFAULT_TOOLSET! ^(default^)
+        exit /b 0
+    )
+)
+for /f "delims=" %%v in ('dir /b /ad /o-n "%MSVC_ROOT%" 2^>nul') do (
+    if not defined ARM64_TOOLSET if exist "%MSVC_ROOT%\%%v\lib\arm64\libcpmt.lib" set "ARM64_TOOLSET=%%v"
+)
+if not defined ARM64_TOOLSET (
+    echo ERROR: No MSVC toolset under %MSVC_ROOT% has the ARM64 C++ libraries.
+    echo        Add "MSVC ARM64 build tools" in the Visual Studio Installer.
+    exit /b 1
+)
+echo ARM64 toolset: %ARM64_TOOLSET%
+set "VCVARS_EXTRA_ARGS=-vcvars_ver=%ARM64_TOOLSET%"
+exit /b 0