Windows 10: It won't let me change the time zone

Yesterday I reinstalled windows and everything is perfect, except for the fact that it does not allow me to change the time zone in the settings or in the control panel. In the settings I see the option in gray as disabled and I can not change it to have my time zone. I hope you can help me, I attach Screenshots.

:)

 

Unable to change the time zone in Windows 10

I'm running Windows 10 Pro. My time zone is Jerusalem, but I need to change it to Eastern to test a program I'm working on.

The time zone won't change. I have tried:

• From the clock/calendar, when I change it - it changes back.
  
• From Control Panel - Date and Time, "Change time zone..." - when I click save I get the message "Error occurred - your changes could not be saved."
  
• As the Built-in Administrator from the command line using tzutil - I get the message "Insufficient privileges to set the current time zone."
  

The registry key TimeZoneInformation has Full Control for Administrators

Administrators are listed in the Local Security Setting "Change the Time Zone"

Any suggestions?

 

Time Zones do not change

Hi Andre,

Thanks for taking the time to help. I appreciate it.

I opened the account on my computer which has Administrator Privileges and ran regedit.

In the first string you suggested, it was already set to NTP.

In the second string, I changed the value to 3, as instructed.

Regrettably, after the restart - the trouble is still present. The Time Zone is still stuck on the time zone of the place I started my trip from.

I opened Settings>Time and confirmed that the toggle is set to Automatically Detect/Change the Time Zone, but it clearly isn't working. Additionally, the place where it displays the Time Zone (which if you click on usually drops down a list where you can
select a new TZ) is grayed out and not longer drops down a list if you click upon it.

Also grayed out is the toggle allowing you to choose to ignore Daylight Savings.

Hmmm. Puzzling.

 

Time Zone Change

I moved states recently and went to change my time zone, only to discover my new time zone (Sydney) wasn't on the list.

How do I get the new time zone added. I would have thought all the major cities would have been there automatically.