--- a/windows.rst	Mon Jun 26 11:21:19 2017 +0300
+++ b/windows.rst	Mon Jun 26 11:28:49 2017 +0300
@@ -613,12 +613,33 @@
 
   cmd> %SystemRoot%\pchealth\helpctr\binaries\helpctr.exe -mode hcp://system/sysinfo/msinfo.xml
 
-Automatically logon to Windows.
-===============================
+Automatically logon to Windows
+==============================
 ::
 
   cmd# control userpasswords2
 
+Time synchronization in Windows
+===============================
+
+Most of registry tweaks have no effect or inconsistent on Windows time
+scheduling.
+
+Better way to control time sync is via Windws Task with commands (start service
+and force update)::
+
+  %windir%\system32\sc.exe  start w32time task_started
+  %windir%\system32\w32tm.exe  /resync
+
+https://www.pretentiousname.com/timesync/
+  Make Windows synchronize time more often.
+https://superuser.com/questions/529367/automatically-sync-windows-time-more-often-than-default
+  Automatically sync Windows time more often than default.
+https://superuser.com/questions/603120/how-to-update-windows-8-clock-with-the-internet-every-time-i-boot-the-system
+  How to update Windows 8 clock with the internet every time I boot the system?
+https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/get-started/windows-time-service/windows-time-service-tools-and-settings
+  Windows Time Service Tools and Settings.
+
 Format drive.
 =============