NVv4-series updates. Remove Linux ref.

Author: Julia Shimanskiy

articles/virtual-machines/linux/toc.yml

@@ -150,8 +150,6 @@
           href: ../nv-series.md?toc=/azure/virtual-machines/linux/toc.json&bc=/azure/virtual-machines/linux/breadcrumb/toc.json
         - name: NVv3-series
           href: ../nvv3-series.md?toc=/azure/virtual-machines/linux/toc.json&bc=/azure/virtual-machines/linux/breadcrumb/toc.json
-        - name: NVv4-series
-          href: ../nvv4-series.md?toc=/azure/virtual-machines/linux/toc.json&bc=/azure/virtual-machines/linux/breadcrumb/toc.json
       - name: Setup GPU drivers
         href: n-series-driver-setup.md      
     - name: High performance compute

articles/virtual-machines/nvv4-series.md

@@ -35,11 +35,11 @@ Premium Storage caching:  Supported
 
 To take advantage of the GPU capabilities of Azure N-series VMs running Windows, NVIDIA or AMD GPU drivers must be installed.
 
-The [NVIDIA GPU Driver Extension](/extensions/hpccompute-gpu-windows.md) installs appropriate NVIDIA CUDA or GRID drivers on an N-series VM. Install or manage the extension using the Azure portal or tools such as Azure PowerShell or Azure Resource Manager templates. See the [NVIDIA GPU Driver Extension documentation](/extensions/hpccompute-gpu-windows.md) for supported operating systems and deployment steps. For general information about VM extensions, see [Azure virtual machine extensions and features](/extensions/overview.md).
+The [NVIDIA GPU Driver Extension](/extensions/hpccompute-gpu-windows.md) installs appropriate NVIDIA CUDA or GRID drivers on a Windows N-series VM. Install or manage the extension using the Azure portal or tools such as Azure PowerShell or Azure Resource Manager templates. See the [NVIDIA GPU Driver Extension documentation](/extensions/hpccompute-gpu-windows.md) for supported operating systems and deployment steps. For general information about VM extensions, see [Azure virtual machine extensions and features](/extensions/overview.md).
 
-If you choose to install NVIDIA GPU drivers manually, see [N-series GPU driver setup for Windows](/windows/n-series-driver-setup.md) or [N-series GPU driver setup for Linux](/linux/n-series-driver-setup) for supported operating systems, drivers, installation, and verification steps.
+If you choose to install NVIDIA GPU drivers manually, see [N-series GPU driver setup for Windows](/windows/n-series-driver-setup.md) for supported operating systems, drivers, installation, and verification steps.
 
-To install AMD GPU drivers manually, see N-series [AMD GPU driver setup for Windows](/windows/n-series-driver-setup.md) for supported operating systems, drivers, installation, and verification steps.
+To install AMD GPU drivers manually, see [N-series AMD GPU driver setup for Windows](/windows/n-series-amd-driver-setup.md) for supported operating systems, drivers, installation, and verification steps.
 
 ## Other sizes
 

articles/virtual-machines/sizes-gpu.md

@@ -27,7 +27,7 @@ GPU optimized VM sizes are specialized virtual machines available with single or
 
 - [NV-series](nv-series.md) and [NVv3-series](nvv3-series.md) sizes are optimized and designed for remote visualization, streaming, gaming, encoding, and VDI scenarios using frameworks such as OpenGL and DirectX. These VMs are backed by the NVIDIA Tesla M60 GPU.
 
-- [NVv4-series](nvv4-series.md) VM sizes optimized and designed for VDI and remote visualization. With partitioned GPUs, NVv4 offers the right size for workloads requiring smaller GPU resources. These VMs are backed by the AMD Radeon Instinct MI25 GPU.
+- [NVv4-series](nvv4-series.md) VM sizes optimized and designed for VDI and remote visualization. With partitioned GPUs, NVv4 offers the right size for workloads requiring smaller GPU resources. These VMs are backed by the AMD Radeon Instinct MI25 GPU. NVv4 VMs currently support only Windows guest operating system.
 
 ## Supported operating systems and drivers