From: bob_bsanc6426 on
computer all of a sudden gets the registry_error message:
0X00000051(0X00000003,0X00000001,0X00003000,0XE10F5030

suspect it was caused by a recent ms update. tried recovery to last good
position but does not work

btw, when the computer boots there are two Windows XP options. If I select
the second option, the computer boots and works.