diff --git a/windows/keep-secure/TOC.md b/windows/keep-secure/TOC.md
index f6205dde4d..bd3cf71087 100644
--- a/windows/keep-secure/TOC.md
+++ b/windows/keep-secure/TOC.md
@@ -401,11 +401,7 @@
 ### [User Account Control](user-account-control-overview.md)
 #### [How User Account Control works](how-user-account-control-works.md)
 #### [User Account Control security policy settings](user-account-control-security-policy-settings.md)
-### [Windows Defender in Windows 10](windows-defender-in-windows-10.md)
-#### [Update and manage Windows Defender in Windows 10](get-started-with-windows-defender-for-windows-10.md)
-#### [Configure Windows Defender in Windows 10](configure-windows-defender-in-windows-10.md)
-#### [Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-in-windows-10.md)
-### [Windows Defender Advanced Threat Protection](windows-defender-in-windows-10.md)
+### [Windows Defender Advanced Threat Protection](windows-defender-advanced-threat-protection.md)
 #### [Requirements for Windows Defender ATP](requirements-windows-defender-atp.md)
 #### [Onboard and configure Windows Defender ATP](onboard-configure-windows-defender-atp.md)
 #### [Windows Defender ATP data storage and privacy](data-storage-privacy-windows-defender-atp.md)
@@ -414,6 +410,10 @@
 #### [Use Windows Defender ATP Portal](use-windows-defender-atp.md)
 #### [Windows Defender ATP settings](settings-windows-defender-atp.md)
 #### [Troubleshoot Windows Defender ATP](troubleshoot-windows-defender-atp.md)
+### [Windows Defender in Windows 10](windows-defender-in-windows-10.md)
+#### [Update and manage Windows Defender in Windows 10](get-started-with-windows-defender-for-windows-10.md)
+#### [Configure Windows Defender in Windows 10](configure-windows-defender-in-windows-10.md)
+#### [Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-in-windows-10.md)
 ## [Enterprise security guides](windows-10-enterprise-security-guides.md)
 ### [Control the health of Windows 10-based devices](protect-high-value-assets-by-controlling-the-health-of-windows-10-based-devices.md)
 ### [Device Guard deployment guide](device-guard-deployment-guide.md)