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You have been locked out of usual way coz u don't have permission to change the time . You &nbsp;can change permission by going to Programs - Management; start Local Security Policy, expand Security Settings\Local Policies\Assignment of User Permissions in the left tree.<br />
In the right tree, double-click &quot;Change system time&quot;, and add the account or group that needs this permission.<br />
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You have been locked out of usual way coz u don't have permission to change the time . You  can change permission by going to Programs - Management; start Local Security Policy, expand Security Settings\Local Policies\Assignment of User Permissions in the left tree.
In the right tree, double-click "Change system time", and add the account or group that needs this permission.



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Sorry,its<br />
start -- run- secpol.msc<br />
&nbsp;right side change system time
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Sorry,its
start -- run- secpol.msc
 right side change system time

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yes, I understand that. &nbsp;I'm not able to make those changes. &nbsp;Can get into the registry though and wanted to make the clock changes through there.
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yes, I understand that.  I'm not able to make those changes.  Can get into the registry though and wanted to make the clock changes through there.

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Why not run a command prompt and type time and press enter it will ask for a new time after it shows a current time and you can change it.
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Why not run a command prompt and type time and press enter it will ask for a new time after it shows a current time and you can change it.

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Is it possible to change the system clock (off by about 12 hours) through the registry? &nbsp;How? &nbsp;I've been locked out of the usual way. &nbsp;Thanks
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Is it possible to change the system clock (off by about 12 hours) through the registry?  How?  I've been locked out of the usual way.  Thanks

Change system clock through registry

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.