diff --git a/src/copilot/CopilotAgent.ts b/src/copilot/CopilotAgent.ts
index 4bd00b7..8abb6b1 100644
--- a/src/copilot/CopilotAgent.ts
+++ b/src/copilot/CopilotAgent.ts
@@ -11,6 +11,7 @@ import Logger from "../helpers/Logger";
 import Json from "../helpers/Json";
 import Client, { CopilotResponse } from "./Client";
 import File from "../helpers/File";
+import Node from "../helpers/Node";
 import { GetCompletionsParams } from "@pierrad/ts-lsp-client";
 import { InlineSuggestionEffect } from "../extensions/InlineSuggestionState";
 
@@ -51,10 +52,10 @@ class CopilotAgent implements SettingsObserver {
 	public startAgent(): void {
 		try {
 			this.agent = spawn(
-				File.wrapFilePath(this.plugin.settings.nodePath),
-				[File.wrapFilePath(this.agentPath), "--stdio"],
+				// Spawn the executable directly to avoid shell parsing issues with spaces
+				Node.normalizePath(this.plugin.settings.nodePath),
+				[Node.normalizePath(this.agentPath), "--stdio"],
 				{
-					shell: true,
 					stdio: "pipe",
 					...(this.plugin.settings.proxy && {
 						env: {
diff --git a/src/helpers/Node.ts b/src/helpers/Node.ts
index d4afb45..b577e01 100644
--- a/src/helpers/Node.ts
+++ b/src/helpers/Node.ts
@@ -10,6 +10,14 @@ class Node {
 			return nodePath;
 		}
 
+		// Trim surrounding whitespace and remove surrounding quotes if the user
+		// pasted a quoted path (common on Windows when copying paths).
+		nodePath = nodePath.trim();
+
+		if ((nodePath.startsWith('"') && nodePath.endsWith('"')) || (nodePath.startsWith("'") && nodePath.endsWith("'"))) {
+			nodePath = nodePath.slice(1, -1);
+		}
+
 		if (nodePath.startsWith("~")) {
 			nodePath = nodePath.replace(/^~(?=$|\/|\\)/, os.homedir());
 		}
@@ -74,11 +82,11 @@ class Node {
 			}
 
 			const result = await new Promise<string>((resolve, reject) => {
-				let spawnOptions = {};
-
-				if (os.platform() === "win32") {
-					spawnOptions = { shell: true };
-				}
+				// Do not run under a shell. Using a shell on Windows will split paths
+				// that contain spaces (eg. "C:\Program Files\nodejs\node.exe") and
+				// cause the command to fail. Spawn the executable directly so paths
+				// with spaces are handled correctly.
+				const spawnOptions = {};
 
 				const nodeProcess = child_process.spawn(
 					normalizedPath,