Dear all, My laptop is not able to boot anymore when I have the wireless USB adapter plugged-in. It has been working untill yesterday. I think the problem could be that the adapter is in conflict with a windows update, because I cannot think of any other reason. My laptop is DELL inspiron 5150, the usb adapter is sitecom 300N WL582 and the OS is windows XP service pack 2 Thanks in advance MiguelCC 1 person needs an answerI do too

Try to plug the Wireless usb adapter to other USB port and see whether the windows can boot.