Windows运行Anaconda错误的pip安装错误

我正在尝试为软件定义的无线电RTL-SDR（RTL2832U）点子安装pyrtlsdr，但是我相信anaconda会遇到问题。尽管通过cygwin和cmder得到相同的响应，但我在cmd中收到两个错误。我正在运行以下命令：

pip install pyrtlsdr

但是，当我运行此命令时，我看到以下错误：

pip install pyrtlsdr
Collecting pyrtlsdr
  Using cached pyrtlsdr-0.2.4-py2.py3-none-any.whl
Installing collected packages: pyrtlsdr
Exception:
Traceback (most recent call last):
  File "C:\Program Files\Anaconda2\lib\site-packages\pip\basecommand.py", 
  line 215, in main
status = self.run(options, args)
File "C:\Program Files\Anaconda2\lib\site-packages\pip\commands\install.py", 
line 317, in run
  prefix=options.prefix_path,
File "C:\Program Files\Anaconda2\lib\site-packages\pip\req\req_set.py", line 
742, in install
  **kwargs
File "C:\Program Files\Anaconda2\lib\site-packages\pip\req\req_install.py", 
line 831, in install
  self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "C:\Program Files\Anaconda2\lib\site-packages\pip\req\req_install.py", 
line 1032, in move_wheel_files
  isolated=self.isolated,
File "C:\Program Files\Anaconda2\lib\site-packages\pip\wheel.py", line 346, 
in 
move_wheel_files
  clobber(source, lib_dir, True)
File "C:\Program Files\Anaconda2\lib\site-packages\pip\wheel.py", line 317, 
in 
 clobber
 ensure_dir(destdir)
File "C:\Program Files\Anaconda2\lib\site-packages\pip\utils\__init__.py", 
line 83, in ensure_dir
  os.makedirs(path)
File "C:\Program Files\Anaconda2\lib\os.py", line 157, in makedirs
  mkdir(name, mode)
WindowsError: [Error 5] Access is denied: 'C:\\Program 
Files\\Anaconda2\\Lib\\site-packages\\pyrtlsdr-0.2.4.dist-info'
You are using pip version 8.1.2, however version 9.0.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' 
command.

这到底是怎么了？我不知道如何在此文件中强制引起我认为会引起问题的特权，此外，我也不知道为什么在此错误中运行建议的升级时为什么会收到相同的错误。