Hello folks,
In the past I came across a weird issue where I was not able to copy files into the Virtual Machine with allow enhanced session mode. if you are experiencing the same issue, then make sure to check my previous post here.
Today I came across another odd behavior where the ‘Show Options’ to configure device redirection is gone.
If you recall the Enhanced Session Mode feature that was introduced in Windows Server 2012 R2. Hyper-V can now redirect local resources to a virtual machine session through Virtual Machine Connection tool. The enhanced session mode connection uses a Remote Desktop Connection session via the virtual machine bus (VMBus), so no network connection to the virtual machine is required!
In below figures you can experiment the options when you try to connect to a Virtual Machine through Hyper-V Manager console with allow enhanced session mode:
If you expand show options, you can browse through various settings:
The following local resources can be redirected when using Virtual Machine Connection.
- Display configuration
- Audio
- Printers
- Clipboard
- Smart cards
- USB devices
- Drives
- Supported Plug and Play devices
Scenario
When I tried to connect from my Hyper-V host to all my virtual machines, I noticed that ‘Show Options’ is disappeared 
Resolution
If you noticed the display is not very clear if you compare it with above screenshots.
Actually this host is HP Mobile Workstation and has a high end NVIDIA Quadro graphic adapter.
I fired up device manager and noticed that I forgot to install the display driver.
After I installed the appropriate display driver, then adjust the screen resolution and finally restart my Hyper-V host…
The ‘Show Options’ is back again 
Hope this helps if you are experiencing the same behavior!
Until then… Enjoy your day!
Cheers,
/Charbel
