Windows 10 resets date format by itself

[EZG]

Hey guys,

I have a strange behavior on my system:
I manually select date format to be dd.mm.yy and after every reboot, or even randomly while using the computer it resets itself to dd/mm/yy.
This is driving me crazy.
I even tried to edit the registry key manually but it's not helping it produces the same behavior.

I hope someone can help me, thanks, have a great day !

 

[Bighorn]

My Win10 Pro doesn't offer that format for US English computer, is yours using different language or more than one language? The day of the week being first is usually whatever the Region or Local usage is but could be whatever the user learned over the years, my learning and usage even working for the military and the government was MM/dd/Year, also usually spoken that way.

Does the problem occur after closing a particular program?

 

[EZG]

I dont know what happened but it started working properly... Thanks for trying to help. Had this problem for like a week (since I started to want to change the date format) and it had to fix itself after posting for help.