HP Vista CLFS.SYS error



I’ve had a fun time this week dealing with a STRANGE Vista problem on an HP computer (I doubt it’s HP specific, but don’t know for certain.) The error goes like this… “A problem has been detected and Windows has been shut down to prevent damage to your computer.” “CLFS.sys” “Page_Fault_in_nonpaged_area” “If this is the first time you’ve seen this stop error screen….” And the stop error code looks like this “stop 0x00000050” The real problem is everything tried leads to the same place.

The last thing the owner described happening was a storm that knocked out the internet connection (but not power) and in attempting to regain the internet connection they rebooted and were welcomed with this blue screen on reboot. (Just after the copyright Microsoft screen with the green scrolling animation.) Startup Repair didn’t solve the problem, starting in the various safe mode options led to the same error. I verified there were NO other hard drives attached to the system and at times pulled all peripherals (including the keyboard and mouse.) Most boot attempts were made with ethernet cable/ps2 mouse/ps2 keyboard/vga monitor/1/8″ speaker, but some boots were attempted with ethernet/mouse/keyboard disconnected which made no difference.

So after a while of trying various attempts to boot or repair or reload the last known good configuration I booted up an XP based livecd and copied the data to a USB key and prepared for the system restore. Well, bios came up pressed f11 to launch the system restore and…. SAME $$!$!$! error. “It’s worse”… call HP (1 month old system…) Somewhere along the line here I pulled one of the two memory sticks and tested with each, no difference. HP basically sold us a recovery cd (thanks HP.)

Well, the recovery cd arrived and !surprise! it booted to the same bluescreen – hello HP again… (I heard an AWFUL lot of “hmm”‘s on the other end as I explained the case history and he read the previous notes. It looked as though we were heading for a bench repair on the machine, but he had a suggestion that seemed a little far out… one person complaining of this problem online had it suggested to them that they might have a virus… “well if it’s a virus, then removing the hard drive ought to allow the recovery cd to at least boot (unless it’s a REALLY clever virus)..” Ok – So I pulled the drive and low and behold the recovery cd booted…

New drive arrived and today the recovery cd installed everything to the new drive in ~2 hours.

All in all this was VERY odd… the drive passed ALL S.M.A.R.T. diagnostics that were run on it, it’s filesystem apparently was in good enough shape for a winxp boot cd to be able to browse and copy files from it. But something must have gone sideways that Vista didn’t like.

CLFS is related to Common Logging…

System specs:

HP Pavilion a6000n PC

AMD 64×2 dual core 4200+
1GB memory
250GB Sata drive
multi dvd burner

I’d love to know what had gone sideways and if there had been ANY way to recover (outside of WIPING the disc).

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