diff --git a/DTLib/Filesystem/Directory.cs b/DTLib/Filesystem/Directory.cs
index e9309fd..e446d4d 100644
--- a/DTLib/Filesystem/Directory.cs
+++ b/DTLib/Filesystem/Directory.cs
@@ -2,11 +2,12 @@
 
 public static class Directory
 {
-    public static bool Exists(string dir) => System.IO.Directory.Exists(dir);
+    public static bool Exists(string dir) => System.IO.Directory.Exists(Path.FixSeparators(dir));
 
     /// создает папку, если её не существует
     public static void Create(string dir)
     {
+        dir = Path.FixSeparators(dir);
         if (!Exists(dir))
         {
             // проверяет существование папки, в которой нужно создать dir
@@ -46,26 +47,11 @@ public static class Directory
     }
 
     /// удаляет папку со всеми подпапками и файлами
-    public static void Delete(string dir)
-    {
-        var subdirs = new List<string>();
-        List<string> files = GetAllFiles(dir, ref subdirs);
-        for (int i = 0; i < files.Count; i++)
-            File.Delete(files[i]);
-        for (int i = subdirs.Count - 1; i >= 0; i--)
-        {
-            Log($"deleting {subdirs[i]}");
-            if (Exists(subdirs[i]))
-                System.IO.Directory.Delete(subdirs[i], true);
-        }
-        Log($"deleting {dir}");
-        if (Exists(dir))
-            System.IO.Directory.Delete(dir, true);
-    }
+    public static void Delete(string dir) => System.IO.Directory.Delete(Path.FixSeparators(dir), true);
 
-    public static string[] GetFiles(string dir) => System.IO.Directory.GetFiles(dir);
-    public static string[] GetFiles(string dir, string searchPattern) => System.IO.Directory.GetFiles(dir, searchPattern);
-    public static string[] GetDirectories(string dir) => System.IO.Directory.GetDirectories(dir);
+    public static string[] GetFiles(string dir) => System.IO.Directory.GetFiles(Path.FixSeparators(dir));
+    public static string[] GetFiles(string dir, string searchPattern) => System.IO.Directory.GetFiles(Path.FixSeparators(dir), searchPattern);
+    public static string[] GetDirectories(string dir) => System.IO.Directory.GetDirectories(Path.FixSeparators(dir));
 
     /// выдает список всех файлов
     public static List<string> GetAllFiles(string dir)
@@ -100,21 +86,11 @@ public static class Directory
 
     public static void CreateSymlink(string sourceName, string symlinkName)
     {
+        sourceName = Path.FixSeparators(sourceName);
+        symlinkName = Path.FixSeparators(symlinkName);
         if (symlinkName.Contains(Path.Sep))
             Create(symlinkName.Remove(symlinkName.LastIndexOf(Path.Sep)));
         if (!Symlink.CreateSymbolicLink(symlinkName, sourceName, Symlink.SymlinkTarget.Directory))
             throw new InvalidOperationException($"some error occured while creating symlink\nDirectory.CreateSymlink({symlinkName}, {sourceName})");
     }
-
-    /// copies directory with symlinks instead of files
-    public static int SymCopy(string srcdir, string newdir)
-    {
-        List<string> files = GetAllFiles(srcdir);
-        if (!srcdir.EndsWith(Path.Sep)) srcdir += Path.Sep;
-        if (!newdir.EndsWith(Path.Sep)) newdir += Path.Sep;
-        int i = 0;
-        for (; i < files.Count; i++)
-            File.CreateSymlink(files[i], files[i].Replace(srcdir, newdir));
-        return i;
-    }
 }
diff --git a/DTLib/Filesystem/File.cs b/DTLib/Filesystem/File.cs
index 99d9dbf..4a107a7 100644
--- a/DTLib/Filesystem/File.cs
+++ b/DTLib/Filesystem/File.cs
@@ -4,13 +4,14 @@ namespace DTLib.Filesystem;
 public static class File
 {
     /// возвращает размер файла в байтах
-    public static long GetSize(string file) => new System.IO.FileInfo(file).Length;
+    public static long GetSize(string file) => new System.IO.FileInfo(Path.FixSeparators(file)).Length;
 
-    public static bool Exists(string file) => System.IO.File.Exists(file);
+    public static bool Exists(string file) => System.IO.File.Exists(Path.FixSeparators(file));
 
     /// если файл не существует, создаёт файл с папками из его пути и закрывает этот фвйл
     public static void Create(string file)
     {
+        file = Path.FixSeparators(file);
         if (!Exists(file))
         {
             if (file.Contains(Path.Sep))
@@ -20,18 +21,20 @@ public static class File
         }
     }
 
-    public static void Copy(string srcPath, string newPath, bool replace = false)
+    public static void Copy(string srcPath, string newPath, bool overwrite = false)
     {
-        if (!replace && Exists(newPath))
+        srcPath = Path.FixSeparators(srcPath);
+        newPath = Path.FixSeparators(newPath);
+        if (!overwrite && Exists(newPath))
             throw new Exception($"file <{newPath}> alredy exists");
-        Create(newPath);
-        WriteAllBytes(newPath, ReadAllBytes(srcPath));
+        System.IO.File.Copy(srcPath, newPath, overwrite);
     }
 
-    public static void Delete(string file) => System.IO.File.Delete(file);
+    public static void Delete(string file) => System.IO.File.Delete(Path.FixSeparators(file));
 
     public static byte[] ReadAllBytes(string file)
     {
+        file = Path.FixSeparators(file);
         using System.IO.FileStream stream = OpenRead(file);
         int size = GetSize(file).ToInt();
         byte[] output = new byte[size];
@@ -45,6 +48,7 @@ public static class File
 
     public static void WriteAllBytes(string file, byte[] content)
     {
+        file = Path.FixSeparators(file);
         using System.IO.FileStream stream = OpenWrite(file);
         stream.Write(content, 0, content.Length);
         stream.Close();
@@ -54,6 +58,7 @@ public static class File
 
     public static void AppendAllBytes(string file, byte[] content)
     {
+        file = Path.FixSeparators(file);
         using System.IO.FileStream stream = OpenAppend(file);
         stream.Write(content, 0, content.Length);
         stream.Close();
@@ -61,12 +66,18 @@ public static class File
 
     public static void AppendAllText(string file, string content) => AppendAllBytes(file, content.ToBytes(StringConverter.UTF8));
 
-    public static System.IO.FileStream OpenRead(string file) =>
-        Exists(file) 
-            ? System.IO.File.Open(file, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.ReadWrite) 
-            : throw new Exception($"file not found: <{file}>");
+    public static System.IO.FileStream OpenRead(string file)
+    {
+        file = Path.FixSeparators(file);
+        if (Exists(file))
+            return System.IO.File.Open(file, System.IO.FileMode.Open, System.IO.FileAccess.Read,
+                System.IO.FileShare.ReadWrite);
+        throw new Exception($"file not found: <{file}>");
+    }
+
     public static System.IO.FileStream OpenWrite(string file)
     {
+        file = Path.FixSeparators(file);
         if (Exists(file))
             Delete(file);
         Create(file);
@@ -74,12 +85,15 @@ public static class File
     }
     public static System.IO.FileStream OpenAppend(string file)
     {
+        file = Path.FixSeparators(file);
         Create(file);
         return System.IO.File.Open(file, System.IO.FileMode.Append, System.IO.FileAccess.Write, System.IO.FileShare.ReadWrite);
     }
 
     public static void CreateSymlink(string sourceName, string symlinkName)
     {
+        sourceName = Path.FixSeparators(sourceName);
+        symlinkName = Path.FixSeparators(symlinkName);
         if (symlinkName.Contains(Path.Sep))
             Directory.Create(symlinkName.Remove(symlinkName.LastIndexOf(Path.Sep)));
         if (!Symlink.CreateSymbolicLink(symlinkName, sourceName, Symlink.SymlinkTarget.File))