Windows XP SP2 users frequently experience freezing issues after the welcome screen, particularly with the start menu becoming unresponsive. This problem may occur due to excessive startup programs, which can be managed through the system configuration utility (msconfig) to improve responsiveness. If the desktop freezes, a temporary fix involves using Task Manager to end the non-responsive explorer.exe process and restarting it. High CPU or memory usage by other applications can exacerbate these issues, potentially due to malware or poorly optimized software. Users upgrading from XP SP1 to SP2 often encounter additional problems, and applying all necessary updates post-installation is crucial. In cases of severe infection, such as win32.parite, running a virus scan and possibly reinstalling programs may be necessary for resolution. Booting into safe mode can also aid in troubleshooting.