Jan 21, 2020 Citrix Receiver for Windows 10 has a list of arguably smart features, however there are several issues that constantly pop-up and prevent Citrix Receiver from launching in Windows 10. For instance, launching Citrix with the regular domain user account fails to launch the desktops and applications.
Solution
In general, switching between applications/windows within a Citrix Desktop Session will work without a need to alter any settings on an endpoint with the newer releases of Citrix Workspace App.
Please review the below sections for additional information:
Download Citrix Receiver For Windows
- With the latest releases of Workspace App for Windows, no changes on the endpoint are required. Hitting 'Alt+Tab' on the endpoint within a windowed Citrix Desktop session.
- If the expected behavior of switching between applications/windows within a Citrix Desktop Session is not occurring, please follow these steps:
Per-Machine setting:
Type: REG_SZ
Name: TransparentKeyPassthrough
Value: Remote
Type: REG_SZ
Name: TransparentKeyPassthrough
Value: Remote
Type: REG_SZ
Name: TransparentKeyPassthrough
Value: Remote
**Note: You have to exit Citrix Workspace App / Citrix Receiver and launch it again for this change to take effect.
- Hit the following keys: 'Option+ Tab'.
Refer Doc : https://docs.citrix.com/en-us/citrix-workspace-app-for-mac/configure.html 
On Linux there are no required settings that need to be changed to allow this behavior.
If the expected behavior of switching between applications/windows within a Citrix Desktop Session is not occurring, please follow these steps:
- Open terminal and navigate to the following location:
- /etc/icaclient/config/All_Regions.ini
- Edit the .ini file with your preferred editor
- ex. nano All_Regions.ini
- Find the following line within the file and update it to 'Remote' after the equal sign:
- TransparentKeyPassthrough =Remote
- Exit Citrix Workspace App or Citrix Receiver and launch it again
Note : Changes made to the above file will be applied to all the connections. On ChromeOS there are two ways of switching between applications/windows within a Citrix Desktop Session, see below: - Go into full screen mode on your Citrix Desktop Session:
- Proceed to switch between applications/windows using 'Alt+Tab'
- Within a windowed session try the following key combination to:
- Proceed to switch between applications/windows using 'Alt+PageUp'
Citrix Workspace
Problem Cause
Additional Resources
Understanding Keyboard Input To Virtual Desktops
By default, when you use a virtual desktop all key presses are directed to it (not the local computer) with the following exceptions:
- Windows logo key+L is directed to the local computer.
- CTRL+ALT+DELETE is directed to the local computer except in some cases if you use the Citrix Desktop Lock.
- Key presses that activate StickyKeys, FilterKeys, and ToggleKeys (Microsoft accessibility features) are normally directed to the local computer.
- As an accessibility feature of the Desktop Viewer, pressing CTRL+ALT+BREAK displays the Desktop Viewer toolbar buttons in a pop-up window.
- Windows key combinations (for example, CTRL+ESC and ALT+TAB) are directed according to the settings that your help desk has selected.
Note: By default, if the Desktop Viewer is maximized, ALT+TAB switches focus between windows inside the session. If the Desktop Viewer is displayed in a window, ALT+TAB switches focus between windows outside the session.
Hotkey sequences are key combinations designed by Citrix. For example, the CTRL+F1 sequence reproduces CTRL+ALT+DELETE, and SHIFT+F2 switches applications between full-screen and windowed mode. You can use hotkey sequences with virtual desktops in many, but not all, setups. For example, they work with your hosted applications.
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