diff --git a/src/main/java/com/topjohnwu/magisk/MagiskManager.java b/src/main/java/com/topjohnwu/magisk/MagiskManager.java
index 3dfda6d5d..df67eb2a7 100644
--- a/src/main/java/com/topjohnwu/magisk/MagiskManager.java
+++ b/src/main/java/com/topjohnwu/magisk/MagiskManager.java
@@ -116,8 +116,8 @@ public class MagiskManager extends Application {
         } else {
             String pkg = suDB.getStrings(Const.Key.SU_REQUESTER, null);
             if (pkg != null) {
-                Shell.su_raw("pm uninstall " + pkg);
                 suDB.setStrings(Const.Key.SU_REQUESTER, null);
+                Shell.su_raw("pm uninstall " + pkg);
             }
         }
 
diff --git a/src/main/java/com/topjohnwu/magisk/SplashActivity.java b/src/main/java/com/topjohnwu/magisk/SplashActivity.java
index d81889565..774603e84 100644
--- a/src/main/java/com/topjohnwu/magisk/SplashActivity.java
+++ b/src/main/java/com/topjohnwu/magisk/SplashActivity.java
@@ -47,9 +47,7 @@ public class SplashActivity extends Activity {
         }
 
         mm.loadMagiskInfo();
-        if (Utils.itemExist(Const.MANAGER_CONFIGS)) {
-            Utils.loadPrefs();
-        }
+        Utils.loadPrefs();
 
         LoadModules loadModuleTask = new LoadModules();
 
diff --git a/src/main/java/com/topjohnwu/magisk/asyncs/HideManager.java b/src/main/java/com/topjohnwu/magisk/asyncs/HideManager.java
index 3be804b5b..d1448d63f 100644
--- a/src/main/java/com/topjohnwu/magisk/asyncs/HideManager.java
+++ b/src/main/java/com/topjohnwu/magisk/asyncs/HideManager.java
@@ -123,9 +123,7 @@ public class HideManager extends ParallelTask<Void, Void, Boolean> {
 
         // Install the application
 
-        List<String> ret = Shell.su(String.format(Locale.US,
-                "pm install --user %d %s >/dev/null && echo true || echo false",
-                mm.userId, repack));
+        List<String> ret = Shell.su(Utils.fmt("pm install %s >/dev/null && echo true || echo false", repack));
         repack.delete();
         if (!Utils.isValidShellResponse(ret) || !Boolean.parseBoolean(ret.get(0)))
             return false;
diff --git a/src/main/java/com/topjohnwu/magisk/asyncs/InstallMagisk.java b/src/main/java/com/topjohnwu/magisk/asyncs/InstallMagisk.java
index 78076dc01..0cf4d830b 100644
--- a/src/main/java/com/topjohnwu/magisk/asyncs/InstallMagisk.java
+++ b/src/main/java/com/topjohnwu/magisk/asyncs/InstallMagisk.java
@@ -188,8 +188,9 @@ public class InstallMagisk extends ParallelTask<Void, Void, Boolean> {
             // Patch boot image
             shell.run(console, logs,
                     "cd " + install,
-                    "KEEPFORCEENCRYPT=" + mKeepEnc + " KEEPVERITY=" + mKeepVerity + " HIGHCOMP=" + highCompression +
-                    " sh update-binary indep boot_patch.sh " + boot + " || echo 'Failed!'");
+                    Utils.fmt("KEEPFORCEENCRYPT=%b KEEPVERITY=%b HIGHCOMP=%b " +
+                                    "sh update-binary indep boot_patch.sh %s || echo 'Failed!'",
+                            mKeepEnc, mKeepVerity, highCompression, boot));
 
             if (TextUtils.equals(console.get(console.size() - 1), "Failed!"))
                 return false;
diff --git a/src/main/java/com/topjohnwu/magisk/utils/Const.java b/src/main/java/com/topjohnwu/magisk/utils/Const.java
index c1dcfcb0e..81c2c5811 100644
--- a/src/main/java/com/topjohnwu/magisk/utils/Const.java
+++ b/src/main/java/com/topjohnwu/magisk/utils/Const.java
@@ -25,7 +25,7 @@ public class Const {
     public static final String TMP_FOLDER_PATH = "/dev/tmp";
     public static final String MAGISK_LOG = "/cache/magisk.log";
     public static final File EXTERNAL_PATH = new File(Environment.getExternalStorageDirectory(), "MagiskManager");
-    public static final String MANAGER_CONFIGS = "/data/.tmp.magisk.config";
+    public static final String MANAGER_CONFIGS = ".tmp.magisk.config";
 
     public static String BUSYBOX_PATH() {
         if (Utils.itemExist("/sbin/.core/busybox/busybox")) {
diff --git a/src/main/java/com/topjohnwu/magisk/utils/Utils.java b/src/main/java/com/topjohnwu/magisk/utils/Utils.java
index 1473f99bc..e362a635f 100644
--- a/src/main/java/com/topjohnwu/magisk/utils/Utils.java
+++ b/src/main/java/com/topjohnwu/magisk/utils/Utils.java
@@ -46,25 +46,21 @@ public class Utils {
     public static boolean isDownloading = false;
 
     public static boolean itemExist(String path) {
-        String command = "[ -e " + path + " ] && echo true || echo false";
-        List<String> ret = Shell.su(command);
+        List<String> ret = Shell.su(fmt("[ -e %s ] && echo true || echo false", path));
         return isValidShellResponse(ret) && Boolean.parseBoolean(ret.get(0));
     }
 
     public static void createFile(String path) {
         String folder = path.substring(0, path.lastIndexOf('/'));
-        String command = "mkdir -p " + folder + " 2>/dev/null; touch " + path + " 2>/dev/null;";
-        Shell.su_raw(command);
+        Shell.su_raw(fmt("mkdir -p %s 2>/dev/null; touch %s 2>/dev/null", folder, path));
     }
 
     public static void removeItem(String path) {
-        String command = "rm -rf " + path + " 2>/dev/null";
-        Shell.su_raw(command);
+        Shell.su_raw(fmt("rm -rf %s 2>/dev/null", path));
     }
 
     public static List<String> readFile(String path) {
-        String command = "cat " + path + " | sed '$a\\ ' | sed '$d'";
-        return Shell.su(command);
+        return Shell.su(fmt("cat %s | sed '$a\\ ' | sed '$d'", path));
     }
 
     public static void dlAndReceive(Context context, DownloadReceiver receiver, String link, String filename) {
@@ -256,16 +252,16 @@ public class Utils {
     }
 
     public static void dumpPrefs() {
-        Map<String, ?> prefMap = MagiskManager.get().prefs.getAll();
         Gson gson = new Gson();
-        String json = gson.toJson(prefMap, new TypeToken<Map<String, ?>>(){}.getType());
-        Shell.su("echo '" + json + "' > " + Const.MANAGER_CONFIGS);
+        String json = gson.toJson(MagiskManager.get().prefs.getAll(), new TypeToken<Map<String, ?>>(){}.getType());
+        Shell.su(fmt("for usr in /data/user/*; do echo '%s' > ${usr}/%s; done", json, Const.MANAGER_CONFIGS));
     }
 
     public static void loadPrefs() {
-        List<String> ret = Utils.readFile(Const.MANAGER_CONFIGS);
+        String config = fmt("/data/user/%d/%s", MagiskManager.get().userId, Const.MANAGER_CONFIGS);
+        List<String> ret = readFile(config);
         if (isValidShellResponse(ret)) {
-            removeItem(Const.MANAGER_CONFIGS);
+            removeItem(config);
             SharedPreferences.Editor editor = MagiskManager.get().prefs.edit();
             String json = ret.get(0);
             Gson gson = new Gson();
@@ -286,4 +282,8 @@ public class Utils {
             MagiskManager.get().loadConfig();
         }
     }
+
+    public static String fmt(String fmt, Object... args) {
+        return String.format(Locale.US, fmt, args);
+    }
 }
\ No newline at end of file