Windows 8 – How to Edit System/User Dictionary

To further eleaborate on what everyone else has said, the "correct" way to do this is through GPO. You may want to look at the package "Group Policy Common Scenarios Using GPMC", it is a set of group policy scripts to lock down workstations for various situations. I believe you are looking for the AppStation script.

The GPMC is not used anymore but the scripts are still really good templates for starting points for doing this.

AppStation

The AppStation scenario is used when you require highly restricted configurations with only a few applications. Use this scenario in “vertical” applications such as marketing, claims and loan processing, and customer-service scenarios.

The AppStation scenario has the following characteristics:

• Allows minimal customization by the user.
• Allows users to access a small number of applications appropriate to their job role.
• Does not allow users to add or remove applications.
• Supports free-seating.
• Provides a simplified desktop and Start menu.
• Users have restricted write access to the local computer and can only write data to their user profile and to redirected folders.
• Is highly secure.

TaskStation

Use the TaskStation scenario when you need the computer dedicated to running a single application, such as on a manufacturing floor, as an entry terminal for orders, or in a call center.

The TaskStation scenario is similar to the AppStation scenario, with the following changes:

• It has only one application installed, which automatically starts when the user logs on.
• No desktop or Start menu is present.

Kiosk

Use this scenario in a public area, such as in an airport where passengers check in and view their flight information. Because the computer is normally unattended, it needs to be highly secure.

The Kiosk scenario has the following characteristics:

• Is a public workstation.
• Runs only one application.
• Uses only one user account and automatically logs on. The system automatically resets to a default state at the start of each session.
• Runs unattended.
• Is highly secure.
• Is simple to operate, with no logon procedure.
• Does not allow users to make changes to the default user or system settings.
• Does not save data to the disk.
• Is always on (the user cannot log off or shut down the computer).

A workstation that uses the Kiosk scenario is similar to a TaskStation, but users are anonymous in that they all share a single user account that automatically logs on at computer startup. This is achieved by modifying the Kiosk machine in a manner described later in this document. No customizations can be made and no user state is preserved.

Although user sessions are usually anonymous, the user can log on to an application-specific account, such as to a Web-based application through Internet Explorer (assuming Internet Explorer is the “kiosk application” launched at startup).

The dedicated application could be a Line of Business (LOB) application, an application hosted in Internet Explorer, or another application, such as one available in Microsoft Office. The default application should not be Windows Explorer or any other shell-like application. Windows Explorer allows more access to the computer than is appropriate for a Kiosk computer. Be sure the command prompt is disabled and Windows Explorer cannot be accessed from any application you use for this purpose.

Applications used for kiosk scenarios should be carefully checked to ensure they do not contain “back doors” that allow users to circumvent system policies. For example, they should not allow users access to applications that access the file system. Ideally, you should only use applications that comply with “The Application Specification for Windows 2000”, are Certified for Windows, and that check for Group Policy settings before giving users access to prohibited features. Older applications will not normally be Group Policy-aware, so try to disable any features that allow users to bypass administrative policy.

The registry entries Run and RunOnce are disabled in the Kiosk scenario through associated policy settings.

I found a good answer. Quirky but not as severe as the other listed answer!

Follow these steps:

1. Completely close the Mail app (drag down from the top of the window to the bottom of the window and hold it there until the screen flips over, and only then let go)
2. Put your computer into Airplane mode (or somehow get it into an offline mode if Airplane mode isn't an option).
3. Now you should be able to open your Mail app -> Settings -> Accounts -> Click on the account you need to manage (should no longer "Need Attention") -> Remove Account.
4. Done!