diff --git a/dvc/command/remove.py b/dvc/command/remove.py
index b8e98200c..814adcfae 100644
--- a/dvc/command/remove.py
+++ b/dvc/command/remove.py
@@ -74,9 +74,6 @@ def add_parser(subparsers, parent_parser):
         help="Force purge.",
     )
     remove_parser.add_argument(
-        "targets",
-        nargs="+",
-        help="DVC-files to remove. Optional. "
-        "(Finds all DVC-files in the workspace by default.)",
+        "targets", nargs="+", help="DVC-files to remove."
     )
     remove_parser.set_defaults(func=CmdRemove)
diff --git a/dvc/exceptions.py b/dvc/exceptions.py
index bddf83ec9..8648f69e7 100644
--- a/dvc/exceptions.py
+++ b/dvc/exceptions.py
@@ -279,3 +279,10 @@ class DvcIgnoreInCollectedDirError(DvcException):
             ".dvcignore file should not be in collected dir path: "
             "'{}'".format(ignore_dirname)
         )
+
+
+class UrlNotDvcRepoError(DvcException):
+    def __init__(self, url):
+        super(UrlNotDvcRepoError, self).__init__(
+            "URL '{}' is not a dvc repository.".format(url)
+        )
diff --git a/dvc/repo/get.py b/dvc/repo/get.py
index e8ea9ba0e..b0e23618a 100644
--- a/dvc/repo/get.py
+++ b/dvc/repo/get.py
@@ -1,13 +1,17 @@
+import logging
 import os
 import shortuuid
 
 from dvc.config import Config
+from dvc.exceptions import NotDvcRepoError, UrlNotDvcRepoError
 from dvc.path_info import PathInfo
 from dvc.external_repo import external_repo
 from dvc.state import StateNoop
 from dvc.utils import remove
 from dvc.utils.compat import urlparse
 
+logger = logging.getLogger(__name__)
+
 
 @staticmethod
 def get(url, path, out=None, rev=None):
@@ -48,5 +52,8 @@ def get(url, path, out=None, rev=None):
             o.path_info = PathInfo(os.path.abspath(out))
             with o.repo.state:
                 o.checkout()
+
+    except NotDvcRepoError:
+        raise UrlNotDvcRepoError(url)
     finally:
         remove(tmp_dir)
diff --git a/dvc/stage.py b/dvc/stage.py
index 142e94094..cc91c81e0 100644
--- a/dvc/stage.py
+++ b/dvc/stage.py
@@ -505,8 +505,6 @@ class Stage(object):
             stage.remove_outs(ignore_remove=False)
             logger.warning("Build cache is ignored when using --remove-outs.")
             ignore_build_cache = True
-        else:
-            stage.unprotect_outs()
 
         if os.path.exists(path) and any(out.persist for out in stage.outs):
             logger.warning("Build cache is ignored when persisting outputs.")
diff --git a/dvc/version.py b/dvc/version.py
index 5433dbd22..218652782 100644
--- a/dvc/version.py
+++ b/dvc/version.py
@@ -7,7 +7,7 @@ import os
 import subprocess
 
 
-_BASE_VERSION = "0.57.0"
+_BASE_VERSION = "0.58.1"
 
 
 def _generate_version(base_version):
diff --git a/tests/conftest.py b/tests/conftest.py
index 051d2b7a9..62355b02c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -9,8 +9,7 @@ from dvc.remote.config import RemoteConfig
 from dvc.utils.compat import cast_bytes_py2
 from dvc.remote.ssh.connection import SSHConnection
 from dvc.repo import Repo as DvcRepo
-from .basic_env import TestDirFixture, TestDvcGitFixture
-
+from .basic_env import TestDirFixture, TestDvcGitFixture, TestGitFixture
 
 # Prevent updater and analytics from running their processes
 os.environ[cast_bytes_py2("DVC_TEST")] = cast_bytes_py2("true")
@@ -187,3 +186,11 @@ def chdir_tmp(tmp_path):
         yield
     finally:
         os.chdir(cwd)
+
+
+@pytest.fixture
+def git_erepo():
+    repo = TestGitFixture()
+    repo.setUp()
+    yield repo
+    repo.tearDown()
diff --git a/tests/func/test_add.py b/tests/func/test_add.py
index a9c52185c..6e7516c49 100644
--- a/tests/func/test_add.py
+++ b/tests/func/test_add.py
@@ -12,6 +12,7 @@ import posixpath
 import logging
 import colorama
 
+from dvc.remote import RemoteLOCAL
 from dvc.system import System
 from mock import patch
 
@@ -535,3 +536,20 @@ def test_windows_should_add_when_cache_on_different_drive(
 
     ret = main(["add", repo_dir.DATA])
     assert ret == 0
+
+
+def test_readding_dir_should_not_unprotect_all(dvc_repo, repo_dir):
+    dvc_repo.cache.local.cache_types = ["symlink"]
+    dvc_repo.cache.local.protected = True
+
+    dvc_repo.add(repo_dir.DATA_DIR)
+    new_file = os.path.join(repo_dir.DATA_DIR, "new_file")
+
+    repo_dir.create(new_file, "new_content")
+
+    unprotect_spy = spy(RemoteLOCAL.unprotect)
+    with patch.object(RemoteLOCAL, "unprotect", unprotect_spy):
+        dvc_repo.add(repo_dir.DATA_DIR)
+
+    assert not unprotect_spy.mock.called
+    assert System.is_symlink(new_file)
diff --git a/tests/func/test_get.py b/tests/func/test_get.py
index b545f1d4a..62d86816d 100644
--- a/tests/func/test_get.py
+++ b/tests/func/test_get.py
@@ -1,6 +1,9 @@
 import os
 import filecmp
 
+import pytest
+
+from dvc.exceptions import UrlNotDvcRepoError
 from dvc.repo import Repo
 
 from tests.utils import trees_equal
@@ -38,3 +41,8 @@ def test_get_repo_rev(repo_dir, erepo):
     assert os.path.isfile(dst)
     with open(dst, "r+") as fobj:
         assert fobj.read() == "branch"
+
+
+def test_get_from_non_dvc_repo(git_erepo):
+    with pytest.raises(UrlNotDvcRepoError):
+        Repo.get(git_erepo.root_dir, "some_file.zip")