各位大侠，
请教一个问题： TOSHIBA Satellite 1805-S207, 曾经因为CPU过热而自动关机，送去保修后基本正常。最近一怪毛病，开机后几乎一直在读硬盘，使得运行速度极慢，最后弹出警告：Virtual memory minimum too low, …….. After checking the setup of virtual memory, I can not find anything wrong. Then I try to restore the computer using the original restore disks coming with my purchase of this laptop, it is weird to show the information on the screen: WRONG MACHINE, it can not be restored, that means “This is not a TOSHIBA MACHINE”. What is wrong? After a couple of days since that, suddenly it turned to be normal, I had not done anything on it. But it keeps for only two days, then one more time it went back into the strange situation. 急切盼望高手们诊断， 是病毒还是硬件问题？如何解决？ 万分感谢！