Use drive redirection through Remote Desktop Services

Local drive redirection isn't working in RDP Session

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• 09/24/2021
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In this article

This article provides a solution to an issue where local drive redirection isn't working in RDP Session.

Applies to: Windows Server 2003
Original KB number: 2436104

Local drive redirection isn't working in RDP Session

• Bài viết
• 09/24/2021
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Trong bài viết này

This article provides a solution to an issue where local drive redirection isn't working in RDP Session.

Applies to: Windows Server 2003
Original KB number: 2436104

POLICY DESCRIPTION:

This policy specifies whether to prevent the mapping of client drives in a Remote Desktop Services session.

By default, an RD Session Host server maps client drives automatically upon connection. Mapped drives appear in the session folder tree in Windows Explorer or Computer in the format on . This setting overrides this behavior.

RDS: Do not allow clipboard redirection- The Policy Expert

POTENTIAL VULNERABILITY:

A user that’s connecting to a terminal server can choose which drives to redirect to the remote server, including mapped network drives.

There is danger in users that redirect local and mapped drives regardless of whether they need it. Those mapped drives may contain sensitive data.

If the status is set to Disabled, client drive redirection is always allowed. If the status is set to Not Configured, client drive redirection is not specified at the Group Policy level. However, an administrator can still disable the client drive redirection by using the Remote Desktop Session Host Configuration tool.

Do not allow drive redirection

This policy setting specifies whether to prevent the mapping of client drives in a Remote Desktop Services session [drive redirection].

By default, an RD Session Host server maps client drives automatically upon connection. Mapped drives appear in the session folder tree in File Explorer or Computer in the formaton. You can use this policy setting to override this behavior.

If you enable this policy setting, client drive redirection is not allowed in Remote Desktop Services sessions, and Clipboard file copy redirection is not allowed on computers running Windows Server 2003, Windows 8, and Windows XP.

If you disable this policy setting, client drive redirection is always allowed. In addition, Clipboard file copy redirection is always allowed if Clipboard redirection is allowed.

If you do not configure this policy setting, client drive redirection and Clipboard file copy redirection are not specified at the Group Policy level.

Supported on: At least Windows Server 2003 operating systems or Windows XP Professional

RegistryHive	HKEY_LOCAL_MACHINE
RegistryPath	SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services
ValueName	fDisableCdm
ValueType	REG_DWORD
EnabledValue	1
DisabledValue	0

terminalserver.admx

How to disable drives
redirection & USB Devices

RedirectionFiles Management

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In this tutorial, you will learn how to disable drive redirection in Group Policy. This will restrain your users from accessing their local drives [C: for example]. In a Virtual Machine environment, your users won’t see their local machine while using V2 Cloud.

Using Microsoft Group Policy

In order to prevent local drives to be mapped from your Cloud Computer please follow the below steps.

STEP 1

Connect to Cloud Computer as Administrator and in the Windows start menu type run, then click Run below Apps category.

STEP 2

In the run window type gpedit.msc and hit enter in order to access the Local Group Policy Editor.

STEP 3

In the Local Group Policy Editor expand Administrative Templates, then Windows Components.

STEP 4

Expand Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection.

STEP 5

In the right pane, double click “Do not allow drive redirection” policy, select Enabled and click Apply and OK to save the policy.

STEP 6

Finally, in the top left corner, click File and Exit.

Notes

– This policy will take effect for new sessions and it will be applied to everyone who accesses this server with RDP and V2 Cloud clients, to make sure policy applies please reboot your server, or open a command prompt and run gpudapte /force.

– This policy will block access to redirected USB and network drives.

– If you are required to apply this policy for non-administrators or specific users, it can be achieved only if the Cloud Computer is joined in Active Directory.

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