Missing "Sign in as Different User" option in SharePoint 2013

If you are missing "Sign in as Different User" option in SharePoint 2013, here are few solutions:

Temporary Solutions:

1)Change the siteurl with yours and it will ask you for the new username and password

http://siteurl/_layouts/closeConnection.aspx?loginasanotheruser=true

Keep in mind first option may not work in some browsers and ie10

2) Open internet explorer by  using "run as different user" option  (Shift+ right click) by entering the username and password that you like

Permanent Fix:


1) Open welcome.ascx file. Below is the path of file:
 C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\CONTROLTEMPLATES\welcome.ascx

2) Put this code in welcome.ascx page

<SharePoint:MenuItemTemplate runat="server" ID="ID_LoginAsDifferentUser"

Text="<%$Resources:wss,personalactions_loginasdifferentuser%>"

Description="<%$Resources:wss,personalactions_loginasdifferentuserdescription%>"

MenuGroupId="100"   Sequence="100"   UseShortId="true"   />