Marcus White has just been promoted to a manager. To give him access to the files that he needs, you make his user account a group, which has access to a special shared folder. Later that afternoon, Marcus tells you that he is still unable to access the files reserved for the Managers group, What should you do? Manually refresh Group Policy settings on the file server. Manually refresh Group Policy settings on his computer. Add his user account to the Act for the shared folder. Have Marcus log off and log back in.

When a user is added to a new group in environments like Windows Active Directory, the updated group memberships are typically applied during the user's next logon session. This means that even though the user account has been correctly added to the "Managers" group, the current session might not recognize the new group membership yet. **Here's why the other options are less appropriate:** 1. **Manually refresh Group Policy settings on the file server:** The issue is related to Marcus's access on his computer, not the file server. Refreshing policies on the server won't resolve the access issue on the client side. 2. **Manually refresh Group Policy settings on his computer:** While refreshing Group Policy can help with some updates, group membership changes specifically require a new logon session to be fully recognized. 3. **Add his user account to the Act for the shared folder:** This option is unclear and doesn't directly address the group membership issue. **The most straightforward and effective solution is to have Marcus log off and log back in.** This action ensures that his session recognizes the updated group memberships, granting him the necessary access to the shared files. **Answer:** Have Marcus log off and log back in.