Marcus White has just been promoted to a manager. What should you do if he is unable to access the files reserved for the Managers group?

Having Marcus log off and log back in is a highly effective initial step in resolving access issues after a promotion. When a user is assigned a new role such as a manager, their user account may get updated with new permissions that are only applied upon logging in. This is because permissions tied to group memberships are evaluated when the user session starts. By having Marcus log off, the system clears his current session and re-evaluates permissions based on the latest group settings when he logs back in. This often resolves access problems without requiring more complex interventions.

Other options, such as adjusting the access control lists (ACLs) or manually refreshing Group Policy settings, are more complex and usually unnecessary if a simple re-login can rectify the situation. They might require additional administrative effort and could take longer to implement, especially if the problem stems from a simple session cache issue rather than an actual permissions error in the ACLs. Thus, logging off and back in is the most straightforward and quickest solution to allow Marcus immediate access to the files.