error on startup: BCCODE 1000000a BCP1 : 00000016 BCP2 : 00000002 BCP3 : 00000000 BCP4 : 804DBDA3 OSVer : 5_1_2600 SP : 3_0 Product : 256_1

I am one of the three who had also marked this problem.  I have done some investigating and have eliminated my auto-reboot problem which showed this error.  What I believe solved the problem was running sfc /scannow.  The error message indicated it was a dll issue.  XP apparently has about 3500 dll files.  The Run command sfc /scannow looks at all the protected files for XP (including the dll files) and brings them back to their original condition.  Upgrades from Microsoft (SP1, SP2 and SP3) are all factored in.  Since I ran sfc /scannow, the periodic auto-reboot I experienced has been eliminated.  I have a Dell 8100 with a Pentium 4 1.4 GHz chip and it now functions as well as it ever has.  I hit the Start button, typed in sfc /scannow (yes, there is a space between sfc and /) and it started to run.  In a short while, it asked me to insert my original XP CD, which I did.  When it finished, I did not restart my machine, but other directions I have seen on other websites advise a restart.  I would agree.  After I finished running sfc /scannow, I did not restart my machine and it rebooted itself again.  After I turned my computer off and restarted it, I have had no problems.  There are many other websites available that can give a lot more information on sfc /scannow.  For me, I believe it has made all the difference.

I am one of the three who had also marked this problem.  I have done some investigating and have eliminated my auto-reboot problem which showed this error.  What I believe solved the problem was running sfc /scannow.  The error message indicated it was a dll issue.  XP apparently has about 3500 dll files.  The Run command sfc /scannow looks at all the protected files for XP (including the dll files) and brings them back to their original condition.  Upgrades from Microsoft (SP1, SP2 and SP3) are all factored in.  Since I ran sfc /scannow, the periodic auto-reboot I experienced has been eliminated.  I have a Dell 8100 with a Pentium 4 1.4 GHz chip and it now functions as well as it ever has.  I hit the Start button, typed in sfc /scannow (yes, there is a space between sfc and /) and it started to run.  In a short while, it asked me to insert my original XP CD, which I did.  When it finished, I did not restart my machine, but other directions I have seen on other websites advise a restart.  I would agree.  After I finished running sfc /scannow, I did not restart my machine and it rebooted itself again.  After I turned my computer off and restarted it, I have had no problems.  There are many other websites available that can give a lot more information on sfc /scannow.  For me, I believe it has made all the difference.