id summary reporter owner description type status component version resolution keywords cc guest host 9521 Guest Crashes when VT-x/AMD-V is enabled Mohammed Irshad Ul Haq "Hi, I have been using Virtual Box for quite a long time and recently i started to get this problem. My Guest Windows Xp Professional System crashes and shows the ""VirtualBox - Guru Meditation"" dialog. I would like make a note here that it only happens when i enable the VT-x/AMD-V extensions. I would also like to make a note that my PC does support VT-x/AMD-V and that previously it was working fine. Attached is the log file and the screenshot file for details. Regards, Mohammed Haq" defect closed other VirtualBox 4.1.2 duplicate Windows Windows