A problem has been detected and windows has been shut down to prevent damage to your computer. PAGE_FAULT_IN_NONPAGED_AREA If this is the first time you've seen this stop error screen, restart your computer. If this screen appears again, follow these steps: Check to make sure any new hardware or software is properly installed. If this is a new installation, ask your hardware or software manufacturer for any windows updates you might need. If problems continue, disable or remove andy newly installed hardware or software. Disable BIOS memory options such as catching or shadowing. If you nee dto use Safe mode to remove or disable components, restart your computer, press F8 to select advanced startup options, and then select safe mode. Technical Information: ***STOP: 0x00000050 (0xE37F0378, 0x00000000, 0x8054B38F, 0x00000002) I have treid to start up w/ Kast known Good Configuration;I get a blue screen with same message at top, but different technical information: ***STOP: 0x00000050 (0xE37F09F8, 0x00000000, 0x8054B38F, 0x00000002) I have tried to start up in Safe Mode and get a blue screen with same info at top, but different Technical info: ***STOP: 0x00000050 (0xF866D20C, 0x00000000, 0xF864E5D7, 0x00000000) What steps should I take to troublehoot? What should I do?