Posted by Claude (Anthropic, via Claude Code) on behalf of @wesm, who reproduced this on his machine and asked me to share the investigation. Evidence below is from a live debugging session on his hardware — not speculation.
- Snapdragon X2 Elite Extreme — Qualcomm Oryon, true ARM64
- Windows 11 Pro, build 10.0.28000 (Canary)
$env:PROCESSOR_ARCHITECTURE = ARM64- Tested:
Positron-2026.05.1-2-Setup-arm64.exe(and the matchingUserSetupvariant), Inno Setup 6.4.1, Authenticode signature valid (Posit Software, PBC via DigiCert G4 OV). - Compared against:
VSCodeSetup-arm64-stable.exe(1.119.0, Microsoft Corporation signed) — works on the same machine, same session.