Bsod: page_fault_in_nonpaged_area

Hello,

 

Running Windows XP SP3 with AV 2009 with no problems for several months. Started last week and is progressly getting worse, to the extent my PC is no longer useable (doesn't stay up long enough after logging in).

 

 BSOD with PAGE_FAULT_IN_NON_PAGED_AREA

             STOP: 0x00000050 (0xE82FFF3A, 0x000000001, 0x804D9AD8, 0x00000001)

 

SYMEFA.SYS Address f746f225  Base At f7448000 Datestamp 498a3b9d

 

I have recently managed to run 'liveupdate' before the PC crashed, but it appears to make no difference. Any ideas?

 

Andy