diff --git a/windows/security/threat-protection/windows-defender-atp/configure-proxy-internet-windows-defender-advanced-threat-protection.md b/windows/security/threat-protection/windows-defender-atp/configure-proxy-internet-windows-defender-advanced-threat-protection.md
index f66994565d..83b2bf606e 100644
--- a/windows/security/threat-protection/windows-defender-atp/configure-proxy-internet-windows-defender-advanced-threat-protection.md
+++ b/windows/security/threat-protection/windows-defender-atp/configure-proxy-internet-windows-defender-advanced-threat-protection.md
@@ -91,9 +91,9 @@ If a proxy or firewall is blocking all traffic by default and allowing only spec
 Service location | Microsoft.com DNS record
 :---|:---
 Common URLs for all locations | ```*.blob.core.windows.net``` <br>```crl.microsoft.com```<br> ```ctldl.windowsupdate.com``` <br>```events.data.microsoft.com```
-US | ```us.vortex-win.data.microsoft.com```<br> ```us-v20.events.data.microsoft.com```<br>```winatp-gw-cus.microsoft.com``` <br>```winatp-gw-eus.microsoft.com```
-Europe | ```eu.vortex-win.data.microsoft.com```<br>```eu-v20.events.data.microsoft.com```<br>```winatp-gw-neu.microsoft.com```<br>```winatp-gw-weu.microsoft.com```
-UK | ```uk.vortex-win.data.microsoft.com``` <br>```uk-v20.events.data.microsoft.com```<br>```winatp-gw-uks.microsoft.com```<br>```winatp-gw-ukw.microsoft.com```
+European Union | ```eu.vortex-win.data.microsoft.com```<br>```eu-v20.events.data.microsoft.com```<br>```winatp-gw-neu.microsoft.com```<br>```winatp-gw-weu.microsoft.com```
+United Kingdom | ```uk.vortex-win.data.microsoft.com``` <br>```uk-v20.events.data.microsoft.com```<br>```winatp-gw-uks.microsoft.com```<br>```winatp-gw-ukw.microsoft.com```
+United States | ```us.vortex-win.data.microsoft.com```<br> ```us-v20.events.data.microsoft.com```<br>```winatp-gw-cus.microsoft.com``` <br>```winatp-gw-eus.microsoft.com```
 
 
 If a proxy or firewall is blocking anonymous traffic, as Windows Defender ATP  sensor is connecting from system context, make sure anonymous traffic is permitted in the above listed URLs.
diff --git a/windows/security/threat-protection/windows-defender-atp/onboard-configure-windows-defender-advanced-threat-protection.md b/windows/security/threat-protection/windows-defender-atp/onboard-configure-windows-defender-advanced-threat-protection.md
index 814ab35c0e..e04d3036dc 100644
--- a/windows/security/threat-protection/windows-defender-atp/onboard-configure-windows-defender-advanced-threat-protection.md
+++ b/windows/security/threat-protection/windows-defender-atp/onboard-configure-windows-defender-advanced-threat-protection.md
@@ -16,22 +16,13 @@ ms.date: 07/01/2018
 # Onboard machines to the Windows Defender ATP service
 
 **Applies to:**
-
-- Windows 10 Enterprise
-- Windows 10 Education
-- Windows 10 Pro
-- Windows 10 Pro Education
-- macOS
-- Linux
-- Windows Server 2012 R2
-- Windows Server 2016
 - Windows Defender Advanced Threat Protection (Windows Defender ATP)
 
 [!include[Prerelease information](prerelease.md)]
 
 >Want to experience Windows Defender ATP? [Sign up for a free trial.](https://www.microsoft.com/en-us/WindowsForBusiness/windows-atp?ocid=docs-wdatp-onboardconfigure-abovefoldlink)
 
-You need to onboard to Windows Defender ATP before you can use the service.
+You need to onboard machines to Windows Defender ATP before you can use the service.
 
 For more information, see [Onboard your Windows 10 machines to Windows Defender ATP](https://www.youtube.com/watch?v=JT7VGYfeRlA&feature=youtu.be).
 
@@ -46,8 +37,10 @@ For more information, see [Windows 10 Licensing](https://www.microsoft.com/en-us
 
 ## Hardware and software requirements
 ### Supported Windows versions
-- Windows 7
-- Windows 8.1
+- Windows 7 SP1 Enterprise
+- Windows 7 SP1 Pro
+- Windows 8.1 Enterprise
+- Windows 8.1 Pro
 - Windows 10
   - Windows 10 Enterprise
   - Windows 10 Education
@@ -161,6 +154,7 @@ If you're running a third-party antimalware client and use Mobile Device Managem
 ## In this section
 Topic | Description
 :---|:---
+[Onboard previous versions of Windows](onboard-downlevel-windows-defender-advanced-threat-protection.md)| Onboard Windows 7 and Windows 8.1 machines to Windows Defender ATP. 
 [Onboard Windows 10 machines](configure-endpoints-windows-defender-advanced-threat-protection.md) | You'll need to onboard machines for it to report to the Windows Defender ATP service. Learn about the tools and methods you can use to configure machines in your enterprise.
 [Onboard servers](configure-server-endpoints-windows-defender-advanced-threat-protection.md) |  Onboard Windows Server 2012 R2 and Windows Server 2016 to Windows Defender ATP 
 [Onboard non-Windows machines](configure-endpoints-non-windows-windows-defender-advanced-threat-protection.md) | Windows Defender ATP provides a centralized security operations experience for Windows as well as non-Windows platforms. You'll be able to see alerts from various supported operating systems (OS) in the Windows Defender ATP portal and better protect your organization's network. This experience leverages on a third-party security products' sensor data.