title: cannot unlink `objects/pack/pack-23879505c4ebc19266f28b149fd52e0aa1e3889a.idx': Permission denied
body: <p>I am really exhausted in deleting below file although I run code in <strong>administrator</strong> mode. Not sure what is blocking it deleting it. Please help me.  Even I tried to delete file from windows CMD but no success.</p>
  
  <pre><code>user@USER-PC /D/Projects/Authorized.net/11/authorize.net/one/.git
  $ rm -rf *
  rm: cannot unlink `objects/pack/pack-23879505c4ebc19266f28b149fd52e0aa1e3889a.idx': Permission denied
  rm: cannot remove directory `objects/pack': Directory not empty
  rm: cannot remove directory `objects': Directory not empty 
  </code></pre>
  
  <p>Here is the list from directory:</p>
  
  <pre><code>user@USER-PC /D/Projects/Authorized.net/11/authorize.net/one/.git
  $ ls -lart
  total 10
  drwxr-xr-x    1 prateek  Administ    12288 Apr 19 00:32 objects
  drwxr-xr-x    1 prateek  Administ     4096 Apr 19 00:32 .
  drwxr-xr-x    1 prateek  Administ     4096 Apr 19 00:58 ..
  </code></pre>
  
  <p>I'm trying to delete local files from present <code>GIT</code>.</p>