So, just a quick update – things move fast in the P2P world! I wrote about the new Group Policy Options for Delivery Optimization in Windows 10 a while back. Well with the latest release of Policies for Windows 10 1703/Server 2016 comes a few more Options for DO.

These new policies simply give you the option to tweak some settings that were previously ‘Hard Coded’ . Did you know for instance that the Delivery Optimization service is configured to only P2P with files that are larger than 100Mb? I know right?

Here are the new settings:

Minimum Peer Caching Content File Size: Specifies the minimum content file size in MB enabled to use Peer Caching.If set to 0 ,  the default value of 100Mb will be used.

Minimum RAM capacity required to enable use of Peer Caching: Specifies the minimum RAM size in GB required to use Delivery Optimization Peer Caching. So, if the minimum set is 1 GB, then devices with 1 GB or higher available RAM will be allowed to use Peer caching. Useful if you have some devices with limited resources that you wish to exclude from P2P activities.

Minimum disk size allowed to use Peer Caching: This one specifies the required minimum disk size ( in GB) for the device to use Delivery Optimization Peer Caching. The default for this is 32Gb This is disk size and NOT free space btw. . Note: If the DOModifyCacheDrive policy is set, the disk size check will apply to the size of the volume on which the new working directory specified by this policy is located


Enable Peer Caching while the device connects via VPN: This is a simple Yes/No option (No is the default) which allows the device to participate in Delivery Optimization Peer Caching while connected via VPN to the domain network. In other words,  the system can download from or upload to other domain network devices, either on VPN or on the corporate domain network.

You can download the latest Windows 10 ADMX templates here: – Updated to point to the correct ADMX Download! 2/2/17