diff --git a/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherEntryPoint.java b/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherEntryPoint.java
index b3ea44ad..6d820cee 100644
--- a/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherEntryPoint.java
+++ b/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherEntryPoint.java
@@ -118,7 +118,6 @@ public static void main(String[] args) throws Throwable {
         List<Path> classpath = resolveClassPath(clientDir, params.actions, params.profile).collect(Collectors.toList());
         List<URL> classpathURLs = classpath.stream().map(IOHelper::toURL).collect(Collectors.toList());
         // Start client with WatchService monitoring
-        boolean digest = !profile.isUpdateFastCheck();
         RequestService service;
         if(params.offlineMode) {
             service = initOffline(LauncherEngine.modulesManager, params);
@@ -187,9 +186,9 @@ public static void main(String[] args) throws Throwable {
         FileNameMatcher assetMatcher = profile.getAssetUpdateMatcher();
         FileNameMatcher clientMatcher = profile.getClientUpdateMatcher();
         Path javaDir = Paths.get(System.getProperty("java.home"));
-        try (DirWatcher assetWatcher = new DirWatcher(assetDir, params.assetHDir, assetMatcher, digest);
-             DirWatcher clientWatcher = new DirWatcher(clientDir, params.clientHDir, clientMatcher, digest);
-             DirWatcher javaWatcher = params.javaHDir == null ? null : new DirWatcher(javaDir, params.javaHDir, null, digest)) {
+        try (DirWatcher assetWatcher = new DirWatcher(assetDir, params.assetHDir, assetMatcher, true);
+             DirWatcher clientWatcher = new DirWatcher(clientDir, params.clientHDir, clientMatcher, true);
+             DirWatcher javaWatcher = params.javaHDir == null ? null : new DirWatcher(javaDir, params.javaHDir, null, true)) {
             // Verify current state of all dirs
             //verifyHDir(IOHelper.JVM_DIR, jvmHDir.object, null, digest);
             //for (OptionalFile s : Launcher.profile.getOptional()) {
@@ -201,10 +200,10 @@ public static void main(String[] args) throws Throwable {
             CommonHelper.newThread("Client Directory Watcher", true, clientWatcher).start();
             if (javaWatcher != null)
                 CommonHelper.newThread("Java Directory Watcher", true, javaWatcher).start();
-            verifyHDir(assetDir, params.assetHDir, assetMatcher, digest);
-            verifyHDir(clientDir, params.clientHDir, clientMatcher, digest);
+            verifyHDir(assetDir, params.assetHDir, assetMatcher, false);
+            verifyHDir(clientDir, params.clientHDir, clientMatcher, false);
             if (javaWatcher != null)
-                verifyHDir(javaDir, params.javaHDir, null, digest);
+                verifyHDir(javaDir, params.javaHDir, null, false);
             LauncherEngine.modulesManager.invokeEvent(new ClientProcessLaunchEvent(engine, params));
             launch(profile, params);
         }
diff --git a/LauncherAPI/src/main/java/pro/gravit/launcher/profiles/ClientProfile.java b/LauncherAPI/src/main/java/pro/gravit/launcher/profiles/ClientProfile.java
index 1a01038b..0f8fc429 100644
--- a/LauncherAPI/src/main/java/pro/gravit/launcher/profiles/ClientProfile.java
+++ b/LauncherAPI/src/main/java/pro/gravit/launcher/profiles/ClientProfile.java
@@ -80,8 +80,6 @@ public final class ClientProfile implements Comparable<ClientProfile> {
     @LauncherNetworkAPI
     private ProfileDefaultSettings settings = new ProfileDefaultSettings();
     @LauncherNetworkAPI
-    private boolean updateFastCheck;
-    @LauncherNetworkAPI
     private boolean limited;
     // Client launcher
     @LauncherNetworkAPI
@@ -107,7 +105,7 @@ public ClientProfile() {
         runtimeInClientConfig = RuntimeInClientConfig.NONE;
     }
 
-    public ClientProfile(List<String> update, List<String> updateExclusions, List<String> updateShared, List<String> updateVerify, Set<OptionalFile> updateOptional, List<String> jvmArgs, List<String> classPath, List<String> modulePath, List<String> modules, List<String> altClassPath, List<String> clientArgs, List<String> compatClasses, Map<String, String> properties, List<ServerProfile> servers, SecurityManagerConfig securityManagerConfig, ClassLoaderConfig classLoaderConfig, SignedClientConfig signedClientConfig, RuntimeInClientConfig runtimeInClientConfig, String version, String assetIndex, String dir, String assetDir, int recommendJavaVersion, int minJavaVersion, int maxJavaVersion, boolean warnMissJavaVersion, ProfileDefaultSettings settings, int sortIndex, UUID uuid, String title, String info, boolean updateFastCheck, String mainClass) {
+    public ClientProfile(List<String> update, List<String> updateExclusions, List<String> updateShared, List<String> updateVerify, Set<OptionalFile> updateOptional, List<String> jvmArgs, List<String> classPath, List<String> modulePath, List<String> modules, List<String> altClassPath, List<String> clientArgs, List<String> compatClasses, Map<String, String> properties, List<ServerProfile> servers, SecurityManagerConfig securityManagerConfig, ClassLoaderConfig classLoaderConfig, SignedClientConfig signedClientConfig, RuntimeInClientConfig runtimeInClientConfig, String version, String assetIndex, String dir, String assetDir, int recommendJavaVersion, int minJavaVersion, int maxJavaVersion, boolean warnMissJavaVersion, ProfileDefaultSettings settings, int sortIndex, UUID uuid, String title, String info, String mainClass) {
         this.update = update;
         this.updateExclusions = updateExclusions;
         this.updateShared = updateShared;
@@ -139,7 +137,6 @@ public ClientProfile(List<String> update, List<String> updateExclusions, List<St
         this.uuid = uuid;
         this.title = title;
         this.info = info;
-        this.updateFastCheck = updateFastCheck;
         this.mainClass = mainClass;
     }
 
@@ -316,8 +313,9 @@ public void setVersion(Version version) {
         this.version = version.name;
     }
 
+    @Deprecated
     public boolean isUpdateFastCheck() {
-        return updateFastCheck;
+        return true;
     }
 
     @Override