Adjust date/time in Windows 8

Recently, I upgraded to Windows 8.

I’ve found the migration to be fairly painless from Windows 7, aside from having to change a few habits (like you do when you upgrade any version of windows).

However, the other day I ran across a weird error, “You are attempting to open a file of the type ‘System file’ (.cpl)”.

You are attempting to open a file of the type 'System file' (.cpl)

The fix is easy enough, .cpl files are Control Panel files. Select “More options”, you should then see a list of applications you can set as the default for that file extension.

How do you want to open this file?

In order to never see this dialog again, you should select “Use this app for all .cpl files”. In the list of programs, look for Windows Control Panel, with luck (as in my case) it’ll be right near the top. If Windows Control Panel is not in the list however, scroll to the very bottom and click on “Look for another app on this PC”.

Look for another app on this PC

You should be presented with an “Open with…” dialog that will let you select a program or script.

Open with...

You’ll want to Navigate to ‘C:\Windows\System32\’ and search for ‘Control.exe’ – that’s the control panel. Select it and click Open.

Date and Time

With that, you should be good to go.

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