title: SQL Server: User does not have permission to perform this action. (Read works)
body: <p>After reinstalling <code>IIS</code> I can't log in. Any page has <code>Insert</code> or <code>Update</code> command, the page fails with error saying <code>User does not have permission to perform this action</code> </p>
  
  <p>Select command works fine. I can edit table data using SSMS or Visual Web Developer but I can't modify or write through web site.
  I'm using windows authentication.</p>
  
  <p>Could you tell me which user's permission needs to be changed? 
  As far as I can tell, everyone is reader, owner and writer.
  I have <code>IUSER</code> -full control on file level and <code>NT AUTHORITY\IUSR</code> has full control on database level.</p>