Adding A registry key

WellingtonIS used Ask the Experts™
I'm trying to add a reg_sz called ScreensaverGracePeriod with a 900 seconds entered.  I tried this but it's adding the entire key and I just want to add the screensavergraceperiod

REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogin" /v REG_SZ/ScreenSaverGraceperiod /d 900
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Try this instead:

REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogin" /v ScreenSaverGraceperiod /t REG_SZ /d 900 /f


That's adding the key again.  here's a picture. What I'm trying to do is add ScreenSaverGraceperiod /t Reg_SZ /d 900 /f to the existing Winlogin. not create an addtional one.
You have a typo on your original post.


REG ADD "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v ScreenSaverGraceperiod /t REG_SZ /d 900 /f
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Will try this but I'm not looking to add an extra Winlogin  key only want to add the screensavergraceperiod /t REG_SZ /d 900 /f to the existing key.


thanks so much.  That did the trick.
This will replace the existing value if one exists.
No problem.

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