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Failed to Install HCMon Driver Error Installing VMware Workstation on Windows Fix

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Last Updated on January 7, 2017

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I was installing VMware Workstation 12 Pro yesterday and I kept getting this “Failed to install hcmon driver” error at the very end of the install, and each time it would undo the install and I’d be left with nothing.

After a few Google searches I found this page in the VMware Knowledge Base and learned the problem was pretty stupid, but easy to fix.

See, I also manage a 32-core 128gb ram server running VMware ESXi 6 in my office and in order to connect to that VMware host I use the VMWare vSphere client. Apparently the vSphere client conflicts with the VMware Workstation installation so I had to uninstall it.

After removing the vSphere client I no longer got the “Failed to install hcmon driver” error while installing VMware Workstation 12.

Once I installed Workstation, the vSphere Client reinstalled perfectly fine.

Also, remember to restart your machine after installs and uninstalls to avoid other issues that can arise from not restarting!


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