Hi there, this is an almost accurate tab of Lewis's song Windows. 
It's in standard tuning, and I use the  
Capo on 4TH fret :) 



This is the main pattern, throug-out the song: 
             I'm not here..        Hell, I only came... 
e|-0----0----0----0----|-0----0----0----0----| 
B|-1----1----1----1----|-1----1----1----1----| 
G|-0h2--2----0----0----|-0h2--2----0----0----| 
D|-3----3----0h2--0----|-3----3----0h2--0----| 
A|-3----3----3----0h2--|-3----3----3----0h2--| 
E|-x----x----3----3----|-x----x----3----3----| 


Chorus (tabbed by ear, not excactly correct): 
I'm sleeping... pillow...   lamplight... 
e|-0------------0------------0------------3------------| 
B|-1------------1------------1------------3------------| 
G|-0------------0------------2------------0------------| 
D|-2------------0------------2------------0------------| 
A|-3------------2------------0------------2------------| 
E|-x------------3------------x------------3------------| 
   C           C/G          Am            G 

These are the basic patterns of the song, I recommend that you listen to the song for  
the strumming pattern etc. Well I hope you find this Tab useful :)