Checkdisk fails with a 50 error

Got a Sony Vaio that will not boot into normal mode.  Booted into the repair disk and ran chkdsk /F from the cmd prompt.  It ran for a while, didn't really seem to come up with anything then stopped with:
"Failed to transfer logged messages to the event log with status of 50."
Generic stop message from what I gather from MS.  I'm about to reload this laptop having tried a startup repair which found nothing but the chkdsk thing bothers me.  I found a bunch of others who have had the problem but none who really found anything wrong with the disk.
I did run Malwarebytes and Superantispyware in safemode.  Nothing but cookies.  Event viewer shows no fdisk errors and only sidebyside app events for MS Works update error.  Nothing else significant I can see.
So, advice?  Just reload?  Any other way to run chkdisk that might be useful?
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You should be running chkdsk /r opposed to chkdsk /f. It will require a restart.
You can also boot to a windows xp disk > press R at fist screen > you may have to enter an administrator password for the computer, if so do it> you will be at the command prompt> type chkdsk /r and press enter.
You may need to run more than once.

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That simply says it can't write it's output to the windows event log. I'd guess because you're not logged into the repair console as admin, or whatever is causing windows to not boot had changed the permissions on the event log.

In any case, where does Windows normal mode fail to load? You problem may just be SAM registry corruption, in which case, blowing away the hardware registry then rebooting may fix it.

The fact that you can boot into safe mode says you have a likely driver conflict. Have you updated any devices recently, installed an O/S patch perhaps? When in safe mode look at the most recently installed MS patches and uninstall them.
noxchoGlobal Support CoordinatorCommented:
What error do you get when trying to load to Normal Mode?
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i would run a diag on that disk to konow it's status - it can be bad
pick the diag you need from the ubcd :      
if CHKDSK is run from a bootable CD, you'll get that error because it's trying to write to the event logs ON THE CD.

I see that all the time.
william_schubertAuthor Commented:
All were helpful but the thing isn't really resolved, no fault of the help. I split the points.
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