Sign in as different user is missing from SharePoint 2013 site
Surprisingly SharePoint 2013 has removed the “Signin as different user”option from the welcome menu. But you can bring back the option by customizing the Welcome.ascx which is presented in the \15\TEMPLATE\CONTROLTEMPLATES\Welcome.ascx directory
This feature allows users who have more than one AD account to quickly login with a different account to SharePoint – but it does not guarantee that no artifacts from the previous user remain!
It was removed by Microsoft because actually it has number of issues in SharePoint 2007 and 2010. Some of the most common issues are:
• Caching problems
• Documents opened in external applications are saved with an unexpected user account
• Right after user logs in with a different account, the page content shows information from the previous account and the cookies are not properly cleared
• Session variables contain information from previous users as the cookies are not cleared
In other words, this feature was never meant as a security mechanism. Therefore, even though it’s possible to bring the menu option back, you should carefully consider whether doing so is really necessary. After all, it was removed for a reason.
If we want to bring the menu option back for all users, we can modify the Welcome.ascx file in the 15-hive on each server by following If we just want to be able to log in with a different account without this menu option, we can use below options.
• Start Windows Internet Explorer by using the Run as different user option, and then go to the SharePoint site
• Access the SharePoint site by using the following URL:
• Add the following element before the existing “ID_RequestAccess” element:
<SharePoint:MenuItemTemplate runat=”server” ID=”ID_LoginAsDifferentUser”
Description=”<%$Resources:wss,personalactions_loginasdifferentuserdescription%>” MenuGroupId=”100″ Sequence=”100″ UseShortId=”true” />
Save the file.
• Another way is to use a runas.exe shortcut to launch browser as another user. Less convenient, but more reliable in the long run.