TypeScript Version Always Shows 1.0

On Windows, tsc --version showed 1.0.3.0 even though I’d installed TypeScript 2.3.4. Running where tsc revealed the culprit.

Version Output

System PATH

The PATH pointed to C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0—the compiler bundled with Visual Studio.

Fix

Remove that path entry and rerun tsc --version:

Now the correct version appears.