diff --git a/apps/desktop/src/main/env-utils.ts b/apps/desktop/src/main/env-utils.ts
index b19b95f3da..82a26efc48 100644
--- a/apps/desktop/src/main/env-utils.ts
+++ b/apps/desktop/src/main/env-utils.ts
@@ -17,6 +17,7 @@ import { execFileSync, execFile } from 'child_process';
 import { promisify } from 'util';
 import { getSentryEnvForSubprocess } from './sentry';
 import { isWindows, isUnix, getPathDelimiter, getNpmCommand } from './platform';
+import { normalizeEnvPathKey } from './agent/env-utils';
 
 const execFileAsync = promisify(execFile);
 
@@ -236,6 +237,9 @@ export function getAugmentedEnv(additionalPaths?: string[]): Record<string, stri
   const env = { ...process.env } as Record<string, string>;
   const pathSeparator = getPathDelimiter();
 
+  // Normalize PATH key to handle case differences on Windows.
+  normalizeEnvPathKey(env);
+
   // Get all candidate paths (platform + additional)
   const candidatePaths = getExpandedPlatformPaths(additionalPaths);
 
@@ -411,6 +415,9 @@ export async function getAugmentedEnvAsync(additionalPaths?: string[]): Promise<
   const env = { ...process.env } as Record<string, string>;
   const pathSeparator = getPathDelimiter();
 
+  // Normalize PATH key to handle case differences on Windows.
+  normalizeEnvPathKey(env);
+
   // Get all candidate paths (platform + additional)
   const candidatePaths = getExpandedPlatformPaths(additionalPaths);