STATUS_LOG_RESTART_INVALID (0XC01A0008) — Log Restart Area Corrupted

1. Corrupted $LogFile (NTFS Metadata) — The Usual Suspect

In my 14 years, this error has never been caused by a bad driver or a misbehaving app. The culprit is almost always a corrupted NTFS log file, specifically the $LogFile system file. The restart area stores pointers that the log service uses to replay or rollback transactions after a crash. If that area gets scrambled — from a dirty shutdown, power loss, or failing disk — you get 0xC01A0008.

Real-world trigger: A server loses power during a heavy write operation. When it comes back up, the log service fails to read the restart area, throws this error, and the volume stays unmounted or read-only.

The fix is CHKDSK with the /f switch. Don't bother with /r unless you suspect physical bad sectors — /f is enough to repair the NTFS metadata structures. Here's how:

chkdsk C: /f

If C: is the system drive, it'll schedule the scan for next reboot. Accept, reboot, and let it run. For a data volume (D:, E:, etc.), you can run it live if nothing holds a lock. CHKDSK will find the corruption in the $LogFile and rewrite the restart area from the active log tail. This fixes 90% of cases.

Pro tip: If CHKDSK throws an error like "Cannot open volume for direct access", you've got a lock. Use chkdsk D: /f from an offline WinPE environment or safe mode. Don't force dismount unless you know what you're doing.

After the fix: Reboot once more. The error should vanish. Check the Application event log for Event ID 1530 — if you see it alongside 0xC01A0008, you're good.

2. Volume Dirty Bit Set From a Previous Crash

Sometimes the log restart area isn't actually corrupted — the dirty bit on the volume is stuck. This happens when a previous CHKDSK or fsck operation was interrupted. The volume thinks it needs recovery, but the recovery process can't find a valid restart area because the log is in a weird state.

Trigger: You ran CHKDSK, it got to 50% and you killed it. Or a power surge hit during the scan. Next boot, you get 0xC01A0008.

Run fsutil dirty query C:. If it says Dirty, you need to force a clean. But never just clear the dirty bit with a tool — that masks real corruption. Instead, run:

chkdsk C: /f /x

The /x switch forces the volume to dismount first. This ensures CHKDSK can fully repair the log structures. After it finishes, check the bit again:

fsutil dirty query C:

If it's Not Dirty and the error is gone, you're done. If it's still dirty, you've got deeper NTFS damage — see Cause 3.

3. Physical Disk Sector Failure in the MFT Area

CHKDSK comes back clean, fsutil shows Not Dirty, but the error persists. Now you're looking at bad sectors on the disk itself — specifically in the MFT zone where the $LogFile lives. The log restart area occupies a specific set of clusters. If those sectors are failing, the NTFS driver can't read them, and you get 0xC01A0008.

Trigger: An older HDD with reallocated sectors. Or a cheap SSD that's nearing its write endurance limit. The error appears randomly during high I/O loads.

First, run CHKDSK /r to map bad sectors and recover readable data. This takes hours on large volumes — schedule it for off-peak.

chkdsk C: /r

After that, check the disk's SMART data. Use wmic diskdrive get status or a tool like CrystalDiskInfo. Look for:

• Reallocated Sectors Count — anything above 10 means the disk is failing.
• Uncorrectable Sector Count — even 1 is bad news.
• Current Pending Sector Count — indicates sectors about to fail.

If SMART shows trouble, replace the drive immediately. No amount of software repair will fix hardware failure. Back up your data first, then swap the disk. After restoring to a healthy drive, the error won't come back.

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