I have a Dell Inspiron 1150 laptop with Windows XP Home Edition service pack 3. Every time I turn my computer on, a Windows Installer box appears, demanding a disk. Immediately after that, a box labeled 'PSSWCORE' appears, also asking for a disk. The exact box message is "The feature you are trying to use is on a CD-Rom or other removable disk that is not available." Well, I'm not trying to use this feature and, more importantly, this Installer is preventing me from shutting the computer down properly. What can I do?1 person got this answerI do too