title: Wordpress 4.0 installing theme failed?
body: <p>i download wordpress 4.0 from wordpress.org but i cannot install any themes with this version.?
  it show error: 
  Downloading install package from <a href="http://wordpress.org/themes/download/bluesip.1.3.5.zip" rel="nofollow">http://wordpress.org/themes/download/bluesip.1.3.5.zip</a>…</p>
  
  <p>Warning: unlink(C:\Windows\TEMP/bluesip5.tmp) [function.unlink]: Permission denied in G:\AppServ\www\itcode\wp-admin\includes\file.php on line 457
  Download failed. error:0D0C50A1:asn1 encoding routines:ASN1_item_verify:unknown message digest algorithm</p>
  
  <p>how can i fix it?</p>