VMware Horizon Client cannot be opened [Fix]

VMware Horizon client helps you access virtual desktops conveniently. However, sometimes the virtual desktop infrastructure may experience startup issues. This article discusses the solutions you can take when the VMware Horizon client fails to start successfully.

Why can't my VMware Horizon client open?

When configuring VDI, if the VMWare Horizon client is not opened, errors may occur. Please confirm that your IT administrator has provided the correct URL and credentials. If everything is fine, follow the solutions mentioned in this guide to resolve the issue.

Fix VMWare Horizon client not opening

If VMWare Horizon client is not opening on your Windows computer, follow the solutions mentioned below.

Check your internet connection

Restart Remote Desktop

Disable H.264 decoding and HEVC

Reset Remote Desktop and Published Applications

Fix Horizon Client

Reinstall VMWare Horizon client

Let’s talk about it in detail.

1]Check your internet connection

Ensuring that your internet connection is stable is crucial for the VMWare Horizon client to connect to the VDI server. You can check your bandwidth using a free internet speed test tool. If you find your connection is slow, try restarting your router. Turn off the router, disconnect all cables, wait a moment and then reconnect and turn on the router.

2]Restart Remote Desktop

If your Internet connection is normal, restarting Internet Explorer may solve the problem. Simply click on the three vertical dots associated with the remote computer and select Restart Desktop. Wait a few moments before trying to connect to the desktop again. Hope this method solves your problem.

3] Disable H.264 decoding and HEVC

H.264 is a codec optimized for playing multimedia content and is supported by most client hardware. Low-power thin clients may get better frame rates using this codec. In comparison, HEVC (High Efficiency Video Coding) is also optimized for multimedia content, but requires more specialized hardware to run effectively. Therefore, these features may not matter to many users. Enabling them may increase the load on your computer or even prevent Horizon Client from starting on your system. Therefore, it is necessary to disable these features. Follow the steps below to do the same.

Open Horizon client.

Click on the gear to open its settings.

Then, go to VMWare BLAST and disable the toggle for Allow H.264 decoding and Allow HEVC decoding.

Finally, close the settings panel and check if the issue has been resolved.

4]Reset Remote Desktop and Published Applications

If you encounter problems when configuring VDI or conflict with the system, it may result in the inability to open the remote desktop. In order to solve the problem, the best way is to reset the VDI. This will help eliminate potential errors but will not delete personal information. To reset a VDI, simply right-click on the virtual desktop and select Reset Desktop.

Resetting published applications will close all open applications and all unsaved data will be lost. To do this, go to the settings of VMWare Horizon Client and click Application Reset. This should work

5]Fix Horizon client

Considering the notorious nature of Horizon client, VMWare provides options to fix it. To fix it, you can double-click the Horizon client installer and select Repair, or run the following command in elevated mode of the command prompt.

VMware-Horizon-Client-y.y.y-abcd.exe/fix

Note: yy.y.y is the version number, and abcd is the internal version number.

This should work great for you.

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