Many factors affect the performance of Windows Server 2008R2 running in a VM. If you're experiencing mouse lag or slow screen redraws, here's some things to check:
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	<li><strong>Use the correct video driver
</strong>A default VMware Tools installation does not select the optimal video driver. After the Tools install completes and the subsequent reboot, go to the Device Manager and have the Display Adapter check for updated drivers in the  <strong>C:\Program Files\Common Files\VMware\Drivers\wddm_video</strong> directory. It should update and the display adapter will now be labeled as a VMware SVGA 3D device.</li>
	<li><strong>Allocate sufficient video memory
</strong>With the VM powered off, edit its settings and select the <strong>Video card</strong> virtual device. On the right, ensure a minimum of 8MB of video RAM has been allocated. More video RAM can be useful is certain use cases, but be aware that tweaking this setting will affect the virtual machine memory overhead on the host. The Settings editor includes a Video Memory Calculator. As usual, when "right-sizing" your VMs, you'll want to find the sweet spot that lets your VMs perform well without wasting resources through over-allocation. Older</li>
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