diff --git a/backend/launcher.js b/backend/launcher.js
index fbe424e..57f6686 100644
--- a/backend/launcher.js
+++ b/backend/launcher.js
@@ -76,7 +76,6 @@ const {
 
 // Services
 const {
-  getInstalledClientVersion,
   getLatestClientVersion
 } = require('./services/versionManager');
 
@@ -141,7 +140,6 @@ module.exports = {
   detectGpu,
   
   // Version functions
-  getInstalledClientVersion,
   getLatestClientVersion,
   saveVersionClient,
   loadVersionClient,
diff --git a/backend/managers/gameLauncher.js b/backend/managers/gameLauncher.js
index 5243823..9ca0e18 100644
--- a/backend/managers/gameLauncher.js
+++ b/backend/managers/gameLauncher.js
@@ -9,7 +9,7 @@ const { getResolvedAppDir, findClientPath } = require('../core/paths');
 const { setupWaylandEnvironment, setupGpuEnvironment } = require('../utils/platformUtils');
 const { saveUsername, saveInstallPath, loadJavaPath, getUuidForUser, getAuthServerUrl, getAuthDomain, loadVersionBranch, loadVersionClient, saveVersionClient } = require('../core/config');
 const { resolveJavaPath, getJavaExec, getBundledJavaPath, detectSystemJava, JAVA_EXECUTABLE } = require('./javaManager');
-const { getInstalledClientVersion, getLatestClientVersion } = require('../services/versionManager');
+const { getLatestClientVersion } = require('../services/versionManager');
 const { updateGameFiles } = require('./gameManager');
 const { syncModsForCurrentProfile } = require('./modManager');
 
diff --git a/backend/managers/gameManager.js b/backend/managers/gameManager.js
index 1673704..5c64e77 100644
--- a/backend/managers/gameManager.js
+++ b/backend/managers/gameManager.js
@@ -4,7 +4,7 @@ const { execFile } = require('child_process');
 const { getResolvedAppDir, findClientPath, findUserDataPath, findUserDataRecursive, GAME_DIR, CACHE_DIR, TOOLS_DIR } = require('../core/paths');
 const { getOS, getArch } = require('../utils/platformUtils');
 const { downloadFile } = require('../utils/fileManager');
-const { getLatestClientVersion, getInstalledClientVersion } = require('../services/versionManager');
+const { getLatestClientVersion } = require('../services/versionManager');
 const { installButler } = require('./butlerManager');
 const { downloadAndReplaceHomePageUI, downloadAndReplaceLogo } = require('./uiFileManager');
 const { saveUsername, saveInstallPath, loadJavaPath, CONFIG_FILE, loadConfig, loadVersionBranch, saveVersionClient, loadVersionClient } = require('../core/config');
diff --git a/backend/services/versionManager.js b/backend/services/versionManager.js
index 56bfa96..46002b7 100644
--- a/backend/services/versionManager.js
+++ b/backend/services/versionManager.js
@@ -26,32 +26,6 @@ async function getLatestClientVersion(branch = 'release') {
   }
 }
 
-async function getInstalledClientVersion() {
-  try {
-    console.log('Fetching installed client version from API...');
-    const response = await axios.get('https://files.hytalef2p.com/api/clientCheck', {
-      timeout: 5000,
-      headers: {
-        'User-Agent': 'Hytale-F2P-Launcher'
-      }
-    });
-
-    if (response.data && response.data.client_version) {
-      const version = response.data.client_version;
-      console.log(`Installed client version: ${version}`);
-      return version;
-    } else {
-      console.log('Warning: Invalid clientCheck API response');
-      return null;
-    }
-  } catch (error) {
-    console.error('Error fetching installed client version:', error.message);
-    console.log('Warning: clientCheck API unavailable');
-    return null;
-  }
-}
-
 module.exports = {
-  getLatestClientVersion,
-  getInstalledClientVersion
+  getLatestClientVersion
 };