The system requirements in this document were valid when this product version released; updates are made periodically. System requirements components not covered here (such as StoreFront, host systems, Citrix Workspace apps and plug-ins, and Provisioning Services) are described in their respective documentation.
Important: Review the Prepare to install article before beginning an installation.
Note:
*Support for Windows operating systems: Citrix XenApp and XenDesktop and associated components are supported only on operating system versions that are supported by their manufacturer. Customers might be required to purchase extended support from their operating system manufacturer.
Unless otherwise noted, the component installer deploys software prerequisites automatically (such as .NET and C++ packages) if the required versions are not detected on the machine. The Citrix installation media also contains some of this prerequisite software.
The installation media contains several third-party components. Before using the Citrix software, check for security updates from the third party, and install them.
For globalization information, see CTX119253.
For components and features that can be installed on Windows Servers, Server Core and Nano Server installations are not supported, unless specifically noted.
For components and features that can be used on Windows 10 machines, the following Windows 10 servicing options and editions are supported:
For further details, see CTX224843.
RAM and disk space values are in addition to requirements for the product image, operating system, and other software on the machine. Your performance will vary, depending on your configuration. This includes the features you use, plus the number of users, and other factors. Using only the minimum can result in slow performance.
For example, the amount of disk space needed on the Controller for connection leasing (which is enabled by default) depends on the number of users, applications, and the mode: 100,000 RDS users with 100 recently-used applications require approximately 3 GB for connection leases; deployments with more applications may require more space. For dedicated VDI desktops, 40,000 desktops require at least 400-500 MB. In all cases, Citrix suggests providing several GBs of additional space.
The following table lists the minimum requirements for core components.
| Component | Minimum |
|---|---|
| All core components on one server, for an evaluation only, not a production deployment | 5 GB RAM |
| All core components on one server, for a test deployment or a small production environment | 12 GB RAM |
| Delivery Controller (more disk space required for Local Host Cache) | 5 GB RAM, 800 MB hard disk |
| Studio | 1 GB RAM, 100 MB hard disk |
| Director | 2 GB RAM, 200 MB hard disk |
| StoreFront | 2 GB RAM, see the StoreFront documentation for disk recommendations |
| License Server | 2 GB RAM; see the Licensing documentation for disk recommendations |
Specific recommendations cannot be provided because of the complex and dynamic nature of hardware offerings, and every XenApp and XenDesktop deployment has unique needs. Generally, sizing a XenApp VM is based on the hardware and not the user workloads (except for RAM; you’ll need more RAM for applications that consume more). The Citrix Tech Zone contains the latest guidance on VDA sizing.
Installing the Microsoft Visual C++ 2017 Runtime on a machine that has the Microsoft Visual C++ 2015 Runtime installed can result in automatic removal of the Visual C++ 2015 Runtime. This is as designed.
If you’ve already installed Citrix components that automatically install the Visual C++ 2015 Runtime, those components will continue to operate correctly with the Visual C++ 2017 version.
Supported operating systems:
Supported Microsoft SQL Server versions for the Site Configuration, Configuration Logging, and Monitoring databases:
The following database high availability solutions are supported (except for SQL Server Express, which supports only standalone mode):
Windows authentication is required for connections between the Controller and the SQL Server Site database.
When installing a Controller, a SQL Server Express database is installed by default for use with the Local Host Cache feature. This installation is separate from the default SQL Server Express installation for the Site database.
For more information, see the following articles:
Supported operating systems:
Supported operating systems:
Note:
To view the event logs on machines where Citrix Director is installed, you must install Microsoft .NET Framework 2.0.
Citrix User Profile Manager:
System Center Operations Manager (SCOM) integration requirements:
Supported browsers for viewing Director:
The recommended optimal screen resolution for viewing Director is 1366 x 1024.
Supported operating systems:
Remote PC Access uses this VDA, which you install on physical office PCs. This VDA supports Secure Boot for XenDesktop Remote PC Access on Windows 10.
Several multimedia acceleration features (such as HDX MediaStream Windows Media Redirection) require that Microsoft Media Foundation be installed on the machine on which you install the VDA. If the machine does not have Media Foundation installed, the multimedia acceleration features will not be installed and will not work. Do not remove Media Foundation from the machine after installing the Citrix software; otherwise, users will not be able to log on to the machine. On most supported Windows desktop OS editions, Media Foundation support is already installed and cannot be removed. However, N editions do not include certain media-related technologies; you can obtain that software from Microsoft or a third party. For more information, see Prepare to install.
During VDA installation, you can choose the HDX 3D Pro mode of the VDA for Windows Desktop OS. That mode is particularly suited for use with DirectX and OpenGL-driven applications and with rich media such as video. See the HDX 3D Pro section for additional support information.
For Linux VDA information, see the Linux Virtual Delivery Agent articles.
To use the Server VDI feature, you can use the command line interface to install a VDA for Windows Desktop OS on a supported server operating system. See Server VDI for guidance.
Supported operating systems:
The installer automatically deploys the following requirements, which are also available on the Citrix installation media in the Support folders:
The installer automatically installs and enables Remote Desktop Services role services, if they are not already installed and enabled.
Several multimedia acceleration features (such as HDX MediaStream Windows Media Redirection) require that the Microsoft Media Foundation be installed on the machine on which you install the VDA. If the machine does not have Media Foundation installed, the multimedia acceleration features will not be installed and will not work. Do not remove Media Foundation from the machine after installing the Citrix software; otherwise, users will not be able to log on to the machine. On most Windows Server versions, the Media Foundation feature is installed through the Server Manager (for Windows Server 2012 and later: ServerMediaFoundation; for Windows Server 2008 R2: DesktopExperience). However, N editions do not include certain media-related technologies; you can obtain that software from Microsoft or a third party. For more information, see Prepare to install.
If Media Foundation is not present on the VDA, these multimedia features do not work:
For Linux VDA information, see the Linux Virtual Delivery Agent articles.
Some XenApp and XenDesktop features may not be supported on all host platforms or all platform versions. For example, AppDisks are supported with XenServer, VMware, and System Center Virtual Machine Manager hosts. See the feature documentation for details.
The Remote PC Access Wake on LAN feature requires Microsoft System Center Configuration Manager minimum 2012.
IMPORTANT: The following major.minor versions are supported, including updates to those versions. CTX131239 contains the most current hypervisor version information, plus links to known issues.
CTX131239 contains current version information, plus links to known issues.
No support is provided for vSphere vCenter Linked Mode operation.
CTX131239 contains current version information, plus links to known issues.
Includes any version of Hyper-V that can register with the supported System Center Virtual Machine Manager versions.
CTX131239 contains current version information, plus links to known issues.
CTX131239 contains current version information, plus links to known issues.
The following functional levels for the Active Directory forest and domain are supported:
UDP audio for Multi-Stream ICA is supported on Citrix Workspace app for Windows and Citrix Workspace app for Linux.
Echo cancellation is supported on Citrix Workspace app for Windows.
See the specific HDX feature support and requirements below.
The Windows user device or thin client must support or contain:
HDX queries the Windows device to verify that it has the required GPU capabilities, and then automatically reverts to server-side desktop composition if it does not. List the devices with the required GPU capabilities that do not meet the processor speed or RAM specifications in the GPO group for devices excluded from Desktop Composition Redirection.
The minimum available bandwidth is 1.5 Mbps; the recommended bandwidth is 5 Mbps. Those values incorporate end-to-end latency.
The following clients are supported for Windows Media client-side content fetching, Windows Media redirection, and realtime Windows Media multimedia transcoding: Citrix Workspace app for Windows, Citrix Workspace app for iOS, and Citrix Workspace app for Linux.
To use Windows Media client-side content fetching on Windows 8 devices, set the Citrix Multimedia Redirector as a default program: in Control Panel > Programs > Default Programs > Set your default programs, select Citrix Multimedia Redirector and click either Set this program as default or Choose defaults for this program. GPU transcoding requires an NVIDIA CUDA-enabled GPU with Compute Capability 1.1 or higher; see https://developer.nvidia.com/cuda/cuda-gpus.
Note:
Citrix Workspace App 1912 and later does not support HDX-FlashRedirection, which is part of the XenApp and XenDesktop 7.15 LTSR CU6 release. HDX-FlashRedirection is available only with Citrix Workspace App 1911 and earlier.
The following clients and Adobe Flash Players are supported:
The major version number of the Flash Player on the user device must be greater than or equal to the major version number of the Flash Player on the server. If an earlier version of the Flash Player is installed on the user device, or if the Flash Player cannot be installed on the user device, Flash content is rendered on the server.
The machines running VDAs require:
When installing a VDA for Windows Desktop OS, you can choose to install the HDX 3D Pro version.
The physical or virtual machine hosting the application can use GPU Passthrough or Virtual GPU (vGPU):
Citrix recommends that the host computer have at least 4 GB of RAM and four virtual CPUs with a clock speed of 2.3 GHz or higher.
Graphical Processing Unit (GPU):
Supported clients: Citrix Workspace app for Windows, Citrix Workspace app for Mac, and Citrix Workspace app for Linux.
Supported video conferencing applications:
To use Skype on a Windows client, edit the registry on the client and the server:
Client registry key HKEY_CURRENT_USER\Software\Citrix\HdxRealTime
Name: DefaultHeight , Type: REG_DWORD, Data: 240
Name: DefaultWidth, Type: REG_DWORD, Data: 320
Server registry key HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\Vd3d\Compatibility
Name: skype.exe, Type: REG_DWORD, Data: Set to 0
Other user device requirements:
You can install the Session Recording administration components (Session Recording Database, Session Recording Server, and Session Recording Policy Console) on a single server or on different servers.
Supported operating systems:
Supported Microsoft SQL Server versions:
Requirement: .NET Framework 4.7.2
Supported operating systems:
Supported operating systems:
Requirement: .NET Framework 4.7.2
Install the Session Recording Agent on every XenApp and XenDesktop server on which you want to record sessions.
Supported operating systems:
Supported operating systems:
Requirement: .NET Framework 4.7.2
For optimal results, install Session Recording Player on a workstation with:
The seek response time depends on the size of the recording and your machine’s hardware specifications.
The Universal Print Server comprises client and server components. The UpsClient component is included in the VDA installation. You install the UpsServer component on each print server where shared printers reside that you want to provision with the Citrix Universal Print Driver in user sessions.
The UpsServer component is supported on:
Requirement: Microsoft Visual C++ 2013 Runtime, 32- and 64-bit
For VDAs for Windows Server OS, user authentication during printing operations requires the Universal Print Server to be joined to the same domain as the VDA.
Standalone client and server component packages are also available for download.
For more information, see Provision printers.
StoreFront 3.12.2000 is the minimum supported version with this release. To use the zone preference feature, you must be using minimum StoreFront 3.12.2000 or later and NetScaler Gateway 11.0-65.x.
Note:
When you attempt to install StoreFront 3.12.5000 using a silent installation, the installer might exit unexpectedly. The issue occurs when PowerShell version 3.0 or later is not installed on the server.
When using Provisioning Services with this release, the minimum supported Provisioning Services version is 7.15.3.
The minimum supported License Server version for XenApp and XenDesktop 7.15 LTSR CU6 is 11.15.0.0 Build 24100. For more information on previous CU versions, see Licensing.
The Microsoft Group Policy Management Console (GPMC) is required if you store Citrix policy information in Active Directory rather than the Site Configuration database. If you install CitrixGroupPolicyManagement_x64.msi separately (for example, on a machine that does not have a XenApp or XenDesktop core component installed), that machine must have Visual Studio 2015 runtime installed. For more information, see the Microsoft documentation.
If you plan to use Citrix Scout on Windows 7 or Windows 2008 R2 machines, you must install PowerShell 3.0 on those machines. For complete requirements, see Citrix Scout.
Multiple network interface cards are supported.
By default, Citrix Workspace app for Windows is installed when you install a VDA.
See App-V for supported versions of Microsoft App-V.
See Local App Access for supported browser information for that feature.
See the Self-Service Password Reset documentation for support and requirements information.
Client folder redirection - Supported operating systems:
Mixed DPIs with multi-monitors. The use of different DPIs between monitors is not supported in Citrix XenDesktop and XenApp environments. You can verify the DPI (% scaling) using Windows Control Panel > Display options. If using a Windows 8.1 or Windows 10 client device, enabling the Let me choose one scaling level for all my displays option in the Windows Control Panel > Display options will configure the monitors appropriately. For more information, see CTX201696.
This version of XenApp and XenDesktop is not compatible with AppDNA 7.8 and AppDNA 7.9. Citrix recommends using the current AppDNA release.
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