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Windows 7 Cannot Time Sync

If you have noticed your Windows 7 machine’s time being off then you should enable time syncing (right click on your time, click Adjust time/date, Internet Time, Change settings…, Synchronize with an Internet time server). However if you are running Windows 7 x64 (you can find out by going to Start, right click on Computer, Properties, and look for System type: 64-bit Operating System on the screen that pops up), this may fail or display “Date and Time: An error occurred: Your changes could not be saved.” if you try and change the time server (I like to use tick.usno.navy.mil).
Date and Time: An error occurred: Your changes could not be saved.

The solution may be a registry edit (thanks to Joonas Lehtolahti for finding it http://my.opera.com/godjonez/blog/2011/10/06/cant-synchronize-time-on-windows-7-or-save-the-sync-settings). Edit HKEY_CLASSES_ROOT\cplfile\shell\cplopen\command\Default to read %SystemRoot%\system32\control.exe “%1”,%* instead of %SystemRoot%\SysWOW64\control.exe “%1”,%*.

You can also use this registry file: https://dukrat.net/files/FixTime64.reg. Just download and run.

3 comments to Windows 7 Cannot Time Sync

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