(unknown charset) =2

HI
 WHY IS I AM NOT ABLE TO GET ANY WEBPAGE  FROM THIS SERVER  PAGE COMING BACK WITH THE  =20    AT THE END OF THE HTTP ADDRESS
EXAMPLE 
HTTP://WWW.MICROSOFT.COM=20 

AND WHEN I OPEN IT SAY'S "The file that you were trying to access cannot be found on this server"   

HOW DO I  FIX THIS PROBLUM ?