Use EnvironmentInfo as Resource

   
       

<StackPanel xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:s="clr-namespace:System;assembly=mscorlib">
    <TextBlock>
        <Label Content="Operating System Version: " />  
        <Label Content="{x:Static s:Environment.OSVersion}" />
        <LineBreak />
        <Label Content=".NET Version: " />
        <Label Content="{x:Static s:Environment.Version}" />
        <LineBreak />
        <Label Content="Machine Name: " />
        <Label Content="{x:Static s:Environment.MachineName}" />
        <LineBreak />
        <Label Content="User Name: " />
        <Label Content="{x:Static s:Environment.UserName}" />
        <LineBreak />
        <Label Content="User Domain Name: " />
        <Label Content="{x:Static s:Environment.UserDomainName}" />
        <LineBreak />
        <Label Content="System Directory: " />
        <Label Content="{x:Static s:Environment.SystemDirectory}" />
        <LineBreak />
        <Label Content="Current Directory: " />
        <Label Content="{x:Static s:Environment.CurrentDirectory}" />
        <LineBreak />
        <Label Content="Command Line: " />
        <Label Content="{x:Static s:Environment.CommandLine}" />
    </TextBlock>
</StackPanel>