Build 4024 changes the game because it includes the and XAR (eXtended Automation Runtime) packages fully validated for Windows 11.
, provided you use build 4024.4 or newer, disable core isolation, and accept moderate real-time constraints (≥250 µs cycles). For greenfield projects requiring hard microsecond precision, consider TwinCAT 4026 or the upcoming 4028 builds, which include a native Windows 11 real-time driver with HVCI compatibility. twincat 4024 windows 11
If you are running Windows 11 version 24H2, extreme caution is needed. There are reported issues where 4024.x and the 24H2 update can lead to BSOD (Blue Screen of Death) when attempting to activate the runtime, particularly on non-Beckhoff hardware. Build 4024 changes the game because it includes
Windows 11 loves Hyper-V. TwinCAT hates sharing the CPU with Hyper-V. If you get a "TwinCAT is not running in Real-Time mode" error: If you are running Windows 11 version 24H2,
Windows 11 enables Virtualization-Based Security (VBS) and Hyper-V by default, which can steal resources from the TwinCAT real-time kernel, leading to jitter or runtime crashes. 2.2. Licensing Issues (Dongles)
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