Erro ao eliminar uma pasta

[Informatica]

[font='Segoe UI', 'Segoe UI Web', 'Segoe UI Symbol', 'Helvetica Neue', 'BBAlpha Sans', 'S60 Sans', Arial, sans-serif]This problem may occur if a file that the Windows Product Activation (WPA) requires is damaged or missing. This behavior occurs if one or both of the following conditions are true:[/font]

• A third-party backup utility or an antivirus program interferes with the installation of Windows XP.
• A file that WPA requires is manually modified.