docs: Update the desktop access introduction (#31599)

* Update the desktop introduction

* Updates from review, keep old file names and locations for now

* Replace mermaid diagram

* Update diagram

* Remove reference to Desktop Access

docs/pages/desktop-access/introduction.mdx

@@ -1,44 +1,70 @@
 ---
-title: Desktop Access
-description: Teleport desktop access introduction and resources.
+title: Manage Access to Windows Resources
+description: Demonstrates how you can manage access to Windows desktops with Teleport.
 videoBanner: n2h0GisWdss
 ---
 
-Teleport manages graphical desktop access to remote hosts. With Teleport, you
-get:
+The topics in this guide describe how to configure Teleport to provide secure, passwordless 
+access to Microsoft Windows desktops and servers. For Windows, Teleport provides the
+following key features:
 
-- A password-less login experience backed by strong cryptographic
-  authentication.
-- Role-based access control (RBAC) for groups of hosts and users.
-- Support for copying and pasting to and from remote hosts.
-- Audit log and recording of all desktop connections.
+- Passwordless access to Windows hosts backed by secure cryptographic authentication.
+- Configurable role-based access controls (RBAC) for groups of hosts and users.
+- Configurable clipboard and directory sharing for copying and pasting to and from 
+remote Windows hosts.
+- Session recording for all desktop activity.
+- Audit logs that track user activity.
 
-<Admonition
-  type="note"
-  title="Supported platforms"
->
-  Only Windows hosts accessible over RDP are supported. Specifically:
+Teleport Windows Desktop Services relies on the remote desktop protocol (RDP) to connect to
+remote Windows hosts. Therefore, Teleport only supports the following Windows hosts that are 
+accessible over RDP:
 
-| Teleport Version              | Windows Desktop                                           | Active Directory |
-|-------------------------------|-----------------------------------------------------------|------------------|
-| Open source Teleport          | Windows Server 2012 R2 / Windows 10 or newer              | Required         |
-| Cloud and Enterprise Teleport | Windows Server 2012 R2 / Windows 10 or newer              | Optional         |
+- Windows Server 2012 R2, or later.
+- Windows 10, or later.
 
-</Admonition>
+The following diagram provides a simplified view of the architecture for managing
+access to Windows computers through Teleport:
+
+![Manage access to Windows through Teleport](../../img/desktop-access/windows-desktop-service-overview.png)
+
+It's worth noting that the Teleport Windows Desktop Service implements a minimal set 
+of remote desktop protocol features to minimize security vulnerabilities for Windows
+computers. Because secure access is the top priority, the Windows Desktop Service 
+might not be as performant as other RDP clients. 
+
+You should use the Teleport Windows Desktop Service to manage access 
+to Windows computers where you store or manipulate your most sensitive information, 
+rather than as a direct replacement for tools that provide general purpose access 
+to Windows computers.
 
 ## Getting started
 
-- [Local users](./getting-started.mdx): Use Teleport Cloud or Enterprise to connect to Windows systems with local users.
-- [Active Directory](./active-directory.mdx): Use Teleport to connect to Windows systems with Active Directory users.
+You can configure Teleport Windows Desktop Service to control access for the following 
+scenarios:
+
+- Local users who access computers that aren't joined to an Active Directory domain.
+- Domain users who access computers that are joined to an Active Directory domain.
+
+If you're managing access for combination of both local users and domain users, you'll 
+need to configure Teleport Windows Desktop Service for both scenarios. For more 
+information about configuring basic access using Teleport Windows Desktop Service, see 
+the following topics:
+
+- [Configure access for local Windows users](./getting-started.mdx)
+- [Configure access for Active Directory with scripts](./active-directory.mdx)
+- [Configure access for Active Directory manually](./active-directory-manual.mdx)
 
-## Resources
+## Managing desktop access
 
-- [Configuration](./reference/configuration.mdx): Configure Windows Desktop Service
-- [RBAC](./rbac.mdx): Role-based Access Control for Teleport Desktop Access
-- [CLI](./reference/cli.mdx): CLI Reference
-- [Audit](./reference/audit.mdx): Audit Events
+The following topics provide information about performing common tasks and 
+Windows-specific configuration settings, role-based permissions, and audit events:
 
-## Troubleshooting
+- [Configure Windows-specific role permissions](./rbac.mdx)
+- [Configure clipboard sharing](./reference/clipboard.mdx)
+- [Configure directory sharing](./directory-sharing.mdx)
+- [Record and play back sessions](./reference/sessions.mdx)
+- [Troubleshooting desktop access](./troubleshooting.mdx)
+- [Windows-specific audit events](./reference/audit.mdx)
+- [Windows-specific configuration settings](./reference/configuration.mdx)
+- [Windows-specific command reference](./reference/cli.mdx)
 
-If you hit any issues, check out the [Troubleshooting documentation](./troubleshooting.mdx)
-for common problems and solutions.