Activation is a process that verifies that a copy of Windows XP is genuine and has not been used on more computers than allowed by the license agreement. It is important to activate Windows XP to receive security updates and other benefits.
There are several ways to check if Windows XP is activated. One way is to open the System Properties dialog box. To do this, right-click on the My Computer icon on the desktop and select Properties. In the System Properties dialog box, look for the section labeled “Windows activation.” If Windows XP is activated, it will say “Activated” in this section.