Changing the Registered Owner, Organization in Windows XP
By editing registry you can Change this
Open registry editor "regedit"
Go to the path
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
Modify the values of RegisteredOwner and RegisteredOrganization
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Enabling / Disabling the Ctrl Alt Del from logon screen
Do the following for enabling/disabling the Ctrl+Alt+Del Login Screen
Start the registry editor (regedit.exe)
Move to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows
NT\CurrentVersion\Winlogon
Double click on DisableCAD (create a variable of type REG_DWORD if it does not exist)
Set to 1 if you don't want to have to press Ctrl-Alt-Del, and set to 0 if you do.
Click OK
Close the registry editor
Reboot the machine
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Problem with using the Network resource error
do the following to solve this error
1. Click Start, click Run, type regedit in the Open box, and then click OK.
2. Locate and then double-click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Lsa
3. In the right pane, double-click restrictanonymous.
4. Make sure that the value in the Value data box is set to 0, and then click OK.
5. Close Registry Editor.
6. Restart the computer.