NtSetInformationCpuPartition
Set → NTSTATUS
NtSetInformationCpuPartition is a Windows NT kernel system call, in the Set category, returning NTSTATUS. Its syscall number is not the same on every Windows release: across the 6 version-and-architecture pairs recorded here it takes 3 distinct values, from 0x01A2 to 0x01A5.
The number is an index into the system service table of one particular build, not a stable identifier, so it is not portable between Windows versions. The table below gives the value recorded for each.
Numbers across OS versions (6)
| OS Version | Architecture | Number |
|---|---|---|
| Windows 11 and Server 11 22H2 | x64 | 0x01A2 (418) |
| Windows 11 and Server 11 23H2 | x64 | 0x01A2 (418) |
| Windows 11 and Server 11 24H2 | x64 | 0x01A5 (421) |
| Windows 11 and Server 11 25H2 | x64 | 0x01A5 (421) |
| Windows 11 and Server Server 2025 | x64 | 0x01A5 (421) |
| Windows 11 and Server Server 23H2 | x64 | 0x01A4 (420) |