this might set you straight
davehc
Premier Member
I have no knowledge of DEll's specialising but, try this:
Type gpedit.msc in the run box
Open Computer Configuration - Administrative Accounts - Control Panel - User Accounts.
Double
click the entry there "Apply the default--etc."
Enable it.
Now, if you reboot, hopefully you will be in the default Windows 7 gui., in here, you should be able to change the user account logon picture, in the way you have tried.
You got one of these?
First, a check is made to determine if the customization functionality is enabled or not. More precisely,
a DWORD value named
OEMBackground in the
HKLMSoftwareMicrosoftWindowsCurrentVersionAuthenticationLogonUIBackground
Its data, of Boolean type, defines whether or not this behavior is turned on,
i.e. 1 for enabled, 0 for disabled.
This value may not exist by default, depending on your system.
You piqued my curiosity with this. I'm sure there's someone more knowledgeable on this subject, but since I'm hooked, I'll keep looking around, for a while anyway.