System requirements and compatibility


  • Minimum 1 GB RAM.
  • .NET Framework minimum requirements
    • Self-Service plug-in requires .NET 4.6.2. It allows you to subscribe to and launch the apps and desktops from the Workspace app user interface or command line. For more information, see Using command-line parameters.
  • Latest version of Microsoft Visual C++ Redistributable.


    Citrix recommends that you use the latest version of Microsoft Visual C++ Redistributable. Otherwise, a restart prompt might appear during an upgrade.

    Starting with Version 1904, Microsoft Visual C++ Redistributable installer is packaged with the Citrix Workspace app installer. During Workspace app installation, the installer checks whether the Microsoft Visual C++ Redistributable package is present on the system and installs it if necessary.


    Attempts to install the Citrix Workspace app with non-administrator privileges on a system without the Microsoft Visual C++ Redistributable package might fail.

    Only an administrator can install the Microsoft Visual C++ Redistributable package.

    For troubleshooting issues with the .NET Framework or the Microsoft Visual C++ Redistributable installation, see Citrix Knowledge Center article CTX250044.

Compatibility matrix

Citrix Workspace app is compatible with all the currently supported versions of Citrix Virtual Apps and Desktops, and Citrix Gateway as listed in the Citrix Product Lifecycle Matrix.

Citrix Workspace app for Windows is compatible with the following Windows Operating systems:


Operating system
Windows 10 32-bit and 64-bit editions. For more information about compatible Windows 10 versions, see Windows 10 Compatibility with Citrix Workspace app for Windows.
Windows 8.1, 32-bit and 64-bit editions (including Embedded edition)
Windows Thin PC
Windows Server 2016
Windows Server 2012 R2, Standard, and, Datacenter editions
Windows Server 2019
Windows 10 Enterprise 2016 LTSB 1607
Windows 10 IoT Enterprise *

*Supports Windows 10 IoT Enterprise 2015 LTSB, Windows 10 IoT Enterprise 2016 LTSB, Anniversary Update, Creators Update, Falls Creators Update.

Windows 10 Compatibility with Citrix Workspace app for Windows

With the release of the Windows 10 Operating System, Microsoft introduced a new way to build, deploy, and service Windows: Windows as a service. New features are packaged into Feature Updates (major versions like 1703, 1709, 1803). Bug fixes and security fixes are packaged into Quality Updates. These updates that can be deployed using existing management tools like SCCM.

The following table lists supported Windows 10 versions.


  • We do not recommend installing Citrix software versions that are released earlier to the Semi-Annual Channel version.
  • Once a Windows 10 version reaches End of Service that version is no longer serviced or supported by the Microsoft. Citrix supports running its software only on an operating system that its manufacturer supports. For information about Windows 10 End of Service, see Microsoft’s Windows Lifecycle Fact Sheet.
Citrix Workspace app Version Windows 10 Version number Build number
2006.1 and later 2004 19041.113
1911 and later 1909 18363.418
1909 and later 1903 18362.116
1812 and later 1809 17763.107
1808 and later 1803 17134.376

Validating free disk space

The following table provides details on the required disk space to install the Citrix Workspace app.

Installation type Required disk space
Fresh installation 572 MB
Upgrade 350 MB

Citrix Workspace app performs a check for the required disk space to complete the installation. The verification is performed both during a fresh installation and an upgrade.


  • The installer performs the check on the disk space only after extracting the installation package.
  • When the system is low on disk space during silent installation, the dialog does not appear but the error message is recorded in the CTXInstall\_TrolleyExpress-\*.log.

Connections, Certificates, and Authentication


  • HTTP store
  • HTTPS store
  • Citrix Gateway 10.5 and later



Citrix Workspace app for Windows is digitally signed. The digital signature is time-stamped. So, the certificate is valid even after the certificate is expired.

  • Private (self-signed)
  • Root
  • Wildcard
  • Intermediate

Private (self-signed) certificates

If a private certificate is installed on the remote gateway, you must install the root certificate of the organization’s certificate authority on the user device that is accessing the Citrix resources.


If the remote gateway’s certificate cannot be verified upon connection (because the root certificate is not included in the local Keystore.), an untrusted certificate warning appears. If a user chooses to continue through the warning, the apps are displayed but cannot be launched.

Root certificates

For domain-joined computers, you can use a Group Policy Object administrative template to distribute and trust CA certificates.

For non-domain joined computers, the organization can create a custom install package to distribute and install the CA certificate. Contact your system administrator for assistance.

Wildcard certificates

Wildcard certificates are used on a server within the same domain.

Citrix Workspace app supports wildcard certificates. Wildcard certificates must be used in accordance with your organization’s security policy. In practice, an alternative to wildcard certificates is a certificate containing the list of server names with the Subject Alternative Name (SAN) extension. Private and public certificate authorities issue these certificates.

Intermediate certificates

If your certificate chain includes an intermediate certificate, the intermediate certificate must be appended to the Citrix Gateway server certificate. For information, see Configuring Intermediate Certificates.


Authentication to StoreFront

  Workspace for web StoreFront Services site (native) StoreFront, Citrix Virtual Apps and Desktops (native) Citrix Gateway to Workspace for web Citrix Gateway to StoreFront Services site (native)
Anonymous Yes Yes      
Domain Yes Yes Yes Yes* Yes*
Domain pass-through Yes Yes Yes    
Security token       Yes* Yes*
Two-factor authentication (domain with security token)       Yes* Yes*
SMS       Yes* Yes*
Smart card Yes Yes   Yes Yes
User certificate       Yes (Citrix Gateway plug-in) Yes (Citrix Gateway plug-in)

* With or without the Citrix Gateway plug-in installed on the device.


Citrix Workspace app supports two-factor authentication (domain plus security token) using Citrix Gateway to the StoreFront native service.

Certificate revocation list

Certificate revocation list (CRL) allows Citrix Workspace app to check if the server’s certificate is revoked. Checking the certificate helps to improve the cryptographic authentication of the server and the overall security of the TLS connection between the user device and a server.

You can enable CRL checking at several levels. For example, you can configure Citrix Workspace app to check only its local certificate list or to check the local and network certificate lists. In addition, you can configure certificate checking to allow users to log on only if all the CRLs are verified.

If you are configuring certificate checking on your local computer, exit Citrix Workspace app. Ensure all the Citrix Workspace components, including the Connection Center, are closed.

For more information, see the TLS section.