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In a Microsoft Remote Desktop session, click inside the remote desktop to give it keyboard focus, then press Ctrl+Alt+End. Microsoft documents this as the remote equivalent of Ctrl+Alt+Delete: it opens the Windows Security dialog for the remote session, where you can use the controls made available by that Windows version, account, session type, and administrator policy.
If the sequence affects your own computer, the usual causes are lost focus, keyboard-routing settings, a missing End key, a nested Remote Desktop connection, or a client that is not Microsoft RDP. The correct fix depends on which client and keyboard you are using.
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How do I send Ctrl+Alt+Delete to a Windows computer in Remote Desktop?
Use the following sequence in the classic Windows Remote Desktop Connection client (mstsc):
- Connect to the remote Windows computer.
- Click anywhere inside the remote desktop window. This gives the session keyboard focus instead of leaving your local desktop active.
- Press Ctrl+Alt+End simultaneously.
- Use the buttons shown in the remote Windows Security dialog.
Microsoft Learn’s Remote Desktop Services Shortcut Keys documentation states that “CTRL+ALT+END” brings up the Windows Security dialog for the Remote Desktop Session Host and provides the same functionality as Ctrl+Alt+Delete on the local computer. The dialog is not guaranteed to look identical in every session. Available controls depend on the remote Windows release, whether you are in a full desktop or RemoteApp session, your account permissions, and policy set by the administrator.
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Ctrl+Alt+End is a command for Microsoft’s RDP keyboard handling. It is not a universal conversion used by every remote-control application. If the window is displaying a different product, identify that product first instead of repeatedly trying Microsoft’s key combination.
What exactly happens after I press Ctrl+Alt+End?
The key sequence requests the remote Windows Security interface. It does not automatically lock the computer, sign out the user, change a password, open Task Manager, or restart the host. Those actions, when available, require a separate selection in the dialog.
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The list can vary between a personal Windows desktop, a server accessed through a jump host, and a RemoteApp session. A policy can hide or restrict actions, and an account with fewer rights can see fewer controls than an administrator. If the dialog appears but does not contain the option you expected, that normally reflects the host’s Windows version, session type, permissions, or policy rather than a failed shortcut.
When you only want to confirm that the command reached the remote computer, inspect the title and contents of the remote security screen, then close it without selecting a consequential action.
Why does ordinary Ctrl+Alt+Delete affect my local PC?
Ctrl+Alt+Delete is handled as a secure local Windows sequence unless the remote client provides a specific mapping. Microsoft’s RDP shortcut table assigns the remote security action to Ctrl+Alt+End, so pressing the ordinary combination normally invokes the local computer’s security screen rather than the remote one.
Think of this as shortcut routing, not a limitation of the remote Windows account. The RDP client intercepts the documented replacement sequence and sends the corresponding security command through the session. A third-party remote-control product may intercept or translate the keys differently, so its instructions must be followed separately.
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Do not assume that holding the keys longer, pressing them in a different order, or sending Ctrl+Alt+Delete repeatedly will redirect the command. First make the remote window active and use the mapping intended for the client.
How do I make sure the remote session receives the keys?
Focus is the first check: click inside the active remote desktop before pressing the shortcut. A visible remote window is not necessarily the current keyboard target; a local dialog, another application, or another browser tab may still own focus.
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- Open the Remote Desktop Connection window before connecting, or disconnect and reopen it.
- Select Show Options.
- Open the Local Resources tab.
- Under Apply Windows key combinations, review the selected choice.
- Choose whether Windows key combinations apply on the local computer, on the remote computer, or only when you are using full-screen mode.
- Reconnect if necessary, click inside the session, and try the remote shortcut again.
The setting controls where supported Windows combinations are applied; it does not turn a non-RDP application into an RDP client. If the setting is configured for full-screen use, a windowed session can leave combinations on the local side. Switching to full-screen mode is a practical way to test whether focus or routing is the problem. After changing the option, reconnecting ensures the new client behavior is used for the session.
When diagnosing focus, send a harmless key such as an arrow key or a character into a remote text field first. If that input appears locally, the remote desktop still does not own focus. Return to the remote window, click once inside it, and retry Ctrl+Alt+End.
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The browser client has platform-specific mappings. Microsoft documents Ctrl+Alt+End for the Windows web client and Fn+Control+Option+Delete for the macOS web client. Do not apply the macOS sequence to every Microsoft client: the browser web client, classic Windows client, Windows App, and other products can have different input behavior.
| Client | Host context | Documented input | Important qualification |
|---|---|---|---|
| Classic Remote Desktop Connection (mstsc) | Remote Windows desktop | Ctrl+Alt+End | Click in the session first; keyboard-routing choices are under Show Options > Local Resources. |
| Microsoft Remote Desktop web client on Windows | Remote Windows session | Ctrl+Alt+End | The browser must have the active session focus. |
| Microsoft Remote Desktop web client on macOS | Remote Windows session | Fn+Control+Option+Delete | This mapping is documented for Microsoft’s macOS web client specifically, not every Mac remote-desktop application. |
| Third-party remote-control client | Depends on the product | Use that product’s command or key mapping | Do not assume Microsoft’s RDP sequence is supported unchanged. |
For a browser session, click the remote desktop area rather than the browser address bar or a local page control. If the browser has a full-screen button, using it can make the active input target clearer, but the key mapping still comes from the specific web client.
What should I do if my laptop has no End key?
Compact keyboards often omit a dedicated End key. Microsoft notes that replacement combinations are manufacturer-specific, so there is no single Fn shortcut that is correct for every laptop.
- Check the keyboard manufacturer’s layout or manual for the Fn mapping that produces End.
- Use the laptop’s embedded End function while holding Ctrl and Alt, preserving the complete Ctrl+Alt+End sequence.
- If the embedded mapping is unreliable, connect a full-size USB keyboard with a dedicated End key. This avoids guessing at a manufacturer-specific layer and is especially useful for regular remote administration.
Test the End key in a local text field first if you are unsure whether the laptop is generating it. Then return to the focused remote session and send the three-key sequence. An external keyboard is an optional hardware expense, not a software requirement; the shortcut itself does not require a paid utility or system-cleaning product.
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Why does Ctrl+Alt+End fail in a nested Remote Desktop session?
A nested session is a connection made from inside another remote desktop, such as opening a second RDP window on a jump host. Microsoft states that keyboard shortcuts and hotkeys do not work in nested Remote Desktop or RemoteApp sessions. In that arrangement, the outer client may consume the keystrokes before the inner session can receive them.
When possible, open the innermost computer’s RDP connection directly from your local device. This removes one keyboard-routing layer and makes it clear which client owns the shortcut. If direct access is not possible, use the innermost client’s documented input controls or a supported menu command rather than assuming the outer session can forward the secure sequence.
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Nested connections are easy to mistake for an ordinary session because the inner desktop may fill the entire outer window. Check whether the current desktop was launched from another remote computer. If it was, treat shortcut forwarding as a documented limitation, not as evidence that the remote account is misconfigured.
How do third-party remote-control applications send Ctrl+Alt+Delete?
Client-specific commands are different from Microsoft RDP shortcuts. For example, Jump Desktop documents a Remote > Send via Keyboard > Ctrl-Alt-Del menu command and lists Ctrl+Alt+End as the Windows conversion for a non-Mac host. That menu path applies to Jump Desktop; it should not be presented as a universal instruction for other applications.
Before troubleshooting a key combination, identify the software that displays the remote screen. Look for a keyboard, actions, or remote-control menu in that application. If it offers a dedicated “Send Ctrl-Alt-Delete” command, use it because the client can then inject the secure sequence without depending on your physical keyboard’s End key.
Do not mix instructions from several products. A command labeled Ctrl-Alt-Del in one application may be a menu action that sends a secure sequence, while another application may require Ctrl+Alt+End or a different conversion. The product name, host operating system, and whether the connection is nested are the minimum details needed to choose the right method.
What host and client requirements matter?
The shortcut is separate from whether a computer can accept a built-in Remote Desktop connection. Microsoft Support’s built-in Remote Desktop setup instructions require the remote PC to run a Windows Pro edition. The connecting device can use a supported Windows edition or another supported operating system, but a keyboard shortcut cannot make an unsupported host edition accept incoming Microsoft Remote Desktop connections.
- Confirm that the remote computer is configured to allow Remote Desktop.
- Verify that the host edition meets Microsoft’s requirement for incoming built-in connections.
- Use the correct Microsoft client or identify the third-party product before applying a shortcut.
- Make sure your account is permitted to sign in and use the remote session.
These prerequisites affect connection availability, not the meaning of Ctrl+Alt+End after a session is already established. If you can already see and interact with the remote desktop, the remaining problem is usually input routing, keyboard layout, session nesting, or client-specific behavior.
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Use a short identification checklist so that you do not change local Windows settings unnecessarily:
- Read the application name in the window or browser tab. Decide whether it is mstsc, Microsoft’s web client, Windows App, Jump Desktop, or another product.
- Identify the operating system and keyboard on the connecting device. A Mac keyboard and a compact Windows laptop may generate different physical keys.
- Determine whether the displayed computer is the first remote host or an inner session launched from another host.
- Note whether the session is windowed or full-screen, because the classic client can apply Windows key combinations only in full-screen mode.
- Click a remote text field and verify that ordinary typing appears remotely before sending the secure sequence.
This inventory prevents a common mistake: applying a Mac web-client mapping to a native Mac application, or applying an RDP shortcut to a third-party viewer that has its own keyboard menu.
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How do I troubleshoot a shortcut that reaches the wrong computer?
Follow this order so that each test removes one common cause without changing unrelated settings:
- Restore focus. Click inside the remote desktop, wait for the session to become active, and press Ctrl+Alt+End together.
- Identify the client. Confirm that you are using Microsoft Remote Desktop. If it is another product, use its documented Send Ctrl-Alt-Delete command or key conversion.
- Review routing. In the classic client, open Show Options > Local Resources and check Apply Windows key combinations.
- Test full-screen mode. If the routing choice is limited to full-screen use, maximize the session and retry.
- Verify End. Check the laptop’s Fn layout or connect a keyboard with a dedicated End key.
- Check for nesting. If the current desktop is itself remote and contains another RDP connection, expect shortcut limitations. Open the inner connection directly or use its own input controls.
- Confirm connection health. If the client is disconnected, frozen, or no longer accepting ordinary keyboard input, reconnect before testing the secure sequence again.
If the remote security dialog still does not appear after these checks, record the exact client name, operating system on the connecting device, keyboard layout, whether the session is full-screen, and whether another remote session is involved. Those details determine which keyboard path is supported; repeating the local Ctrl+Alt+Delete sequence will not correct a routing problem.
Which method should I use on each setup?
| Setup | Primary method | Focus or routing requirement | Common limitation |
|---|---|---|---|
| Windows classic desktop client | Ctrl+Alt+End | Remote window focused; check Local Resources routing | Compact keyboards may lack End. |
| Windows browser web client | Ctrl+Alt+End | Browser tab and remote session focused | Another application or tab can retain keyboard focus. |
| macOS browser web client | Fn+Control+Option+Delete | Web session focused | This mapping is client-specific and should not be generalized to every Mac app. |
| Third-party remote-control software | Use its Send Ctrl-Alt-Delete menu or documented conversion | Follow that product’s input model | Microsoft’s RDP mapping may not be recognized. |
| Nested RDP or RemoteApp | Direct connection to the inner host, or inner client controls | Shortcut forwarding is not dependable | Outer and inner clients can compete for the same keystrokes. |
Can I use Ctrl+Alt+End before signing in?
When the RDP client has established a session and is displaying the remote Windows sign-in environment, the command is intended to invoke the remote security handling rather than the local computer’s sequence. The exact controls shown still depend on the remote host and policy. If the client has not connected or is only showing a connection error, there is no active remote input path for the command to use.
What if the remote session is disconnected or frozen?
Ctrl+Alt+End requires an active RDP input path. If the client is disconnected, the window is not receiving input, or the session is frozen before it can process keyboard events, first restore the connection or use the client’s reconnect and session-management controls. A shortcut cannot repair a transport failure.
Test ordinary typing after reconnecting. If characters still do not reach a remote field, solve the connection or focus problem first; changing the Ctrl+Alt+End sequence will not help while the session is not accepting keyboard events.
Can an administrator disable some Windows Security actions?
Yes. Group policy, account permissions, server role, and session type can remove or restrict actions in the security dialog. Seeing fewer controls than another user is not evidence that the shortcut failed; it can simply reflect the policy applied to that remote account.
Do not try to bypass a missing control by sending the local Ctrl+Alt+Delete sequence. Ask the administrator which action is permitted or use the controls that the remote session exposes.
Does a Mac keyboard always need the Fn key?
Only the documented macOS web-client mapping specifies Fn+Control+Option+Delete. Other Mac clients may expose a menu command, use a different function-key layer, or provide their own mapping. Check the active client’s keyboard documentation rather than transferring this sequence to an unrelated application.
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Is any special software or purchase required?
No additional utility is required for Microsoft RDP. The standard shortcut is built into the client. The only practical hardware fallback is a full-size USB keyboard with a dedicated End key when a compact keyboard cannot produce End reliably. That is optional and solves a physical-key limitation; it does not change the remote host or install a different Remote Desktop service.
Frequently Asked Questions
Will Ctrl+Alt+End restart the remote computer by itself?
No. The key sequence opens the remote Windows Security interface; it does not execute a restart or sign-out automatically. Any consequential action requires selecting an available control in that interface, and policy may hide some controls.
Why are the buttons in my remote security dialog different from a colleague’s?
Windows builds, account privileges, RemoteApp versus full-desktop sessions, and administrator policies can change which actions are exposed. Different button sets therefore do not necessarily indicate a keyboard or connection problem.
Can I use this shortcut when the remote window is disconnected?
No. The command needs an active session capable of receiving keyboard input. Reconnect the client or use its session-management controls before testing the key sequence again.
Is the Mac web-client combination valid in every Mac remote-desktop app?
No. Fn+Control+Option+Delete is the mapping Microsoft documents for its macOS browser client. A native Mac client or third-party application may provide a menu command or a different key conversion.
Why does Ctrl+Alt+Delete keep opening security options on my local computer?
The ordinary sequence is normally handled locally. Click inside the remote session and use Ctrl+Alt+End for Microsoft RDP, or use the equivalent Send Ctrl-Alt-Delete command supplied by your third-party client.
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Check the manufacturer’s Fn mapping for End and hold Ctrl and Alt while producing that key. If the mapping is unavailable or unreliable, use a full-size USB keyboard with a dedicated End key.
Does Ctrl+Alt+End work through two Remote Desktop connections?
Microsoft documents shortcut limitations in nested Remote Desktop and RemoteApp sessions. Connect directly to the inner host when possible, or use the inner client’s own input controls.
Where is the keyboard-routing setting in the classic client?
Open Remote Desktop Connection, choose Show Options, select Local Resources, and inspect Apply Windows key combinations. The choices apply combinations locally, remotely, or only in full-screen mode.
Does the remote computer need a particular Windows edition?
Microsoft’s built-in incoming Remote Desktop setup requires the remote PC to run a Windows Pro edition. That connection requirement is separate from the Ctrl+Alt+End shortcut once a session is established.
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For Microsoft Remote Desktop, click inside the active remote session and press Ctrl+Alt+End. If it reaches the wrong computer, verify the client, Local Resources keyboard-routing choice, full-screen state, End-key mapping, and whether the session is nested. Microsoft’s macOS web client uses Fn+Control+Option+Delete; other clients may provide their own Send Ctrl-Alt-Delete command.
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