Administrators may notice that when running the installer for Citrix Workspace App for Windows, the installer seems to start but just vanishes. The problem can happen with Upgrades or clear installs. The application event log indicates that the CWAInstaller.exe is crashing with the following event:

Source: Application Error
Event ID: 1000
Faulting Application name: CWAInstaller.exe, version:xxxxx, time stamp:
Exception Code:  e0434352

Source: .Net Runtime
Event ID: 1026
Application: CWAInstaller.exe
CoreCLRVersion:xxxxxx
.Netversion:xxxxxx
System.IO.FileNotFoundException: Could not load file or assembly "C:\Program Files (x86)\Citrix\CTX-xxxxxx-xxxxxxx\CWAInstallerHelp.dll"

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Corrupted Visual C++ Redistributable package.

Reinstalling Visual C++ Redistributable package on the machine should resolve the issue.

Administrators may notice that when running the installer for Citrix Workspace App for Windows, the installer seems to start but just vanishes.

You can find the latest version of Visual C++ Redistributable at https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170#latest-supported-redistributable-version