I installed a new RAM 256 DDR, HDD 160 GB installed Windows XP as well. It worked normally. I installed several softwares then started the problem. During windows xp startup an error message comes: PAGE_FAULT_IN_NONPAGED_AREA First time it came as "STOP: 0x00000044(0xd1f0z008,0x00000d62, ... ...)" Next time it was "STOP: (0x00000050(0XF1FFF620,0X00000001,0X8056C0B5,0X00000000)" Then, STOP0xea00a3fc,0x0,0x80582946,0x02) then, Stop: 0x8e(0xc05, 0xbf918863,0xf87a0cb8,0x0) every time a new error message!! and says Beginning dump of physical memory everytime the error message is new: I repaired the xp and Windows started normally. I switched off the system and turned on and it worked. But after some time when I turned on I had to experience the problem. How to solve this. Windows don't start. It restarts automatically after the above message. I have Win 98 SP 2 as 2nd OS and it works normally. Please help!!