Fix STATUS_IO_REPARSE_TAG_INVALID 0xC0000276 Error

You're staring at a blue screen or a file error with code 0xC0000276, and it's a pain. I get it. This one's a corrupted reparse point in NTFS. Think of a reparse point like a shortcut that tells Windows where to find data — when it breaks, Windows can't read it. The fix is straightforward.

Fix It: Run chkdsk First, Then sfc and dism

I've seen this error pop up after a failed backup, a botched OneDrive sync, or even a bad SSD firmware update. The quickest fix is to repair the file system. Here's the order that works for me:

Boot into recovery mode — If Windows won't start, you'll need a Windows installation USB. Plug it in, boot from it, and click "Repair your computer" at the bottom-left of the installer. If Windows does boot, skip to step 2.
Open Command Prompt — In recovery, go to Troubleshoot > Advanced options > Command Prompt. If you're in Windows, press Win + R, type cmd, and press Ctrl + Shift + Enter to run as admin.
Run chkdsk with repair flags — Type this and hit Enter:
```
chkdsk C: /f /r /x
```
After you press Enter, you'll see a message like "Chkdsk cannot run because the volume is in use." Type Y and hit Enter. Then restart your PC. Windows will check the drive on reboot. This takes a while — 20 minutes to an hour, depending on your drive size. You'll see a progress percentage on a black screen. Let it finish.
After reboot, run sfc — Open Command Prompt as admin again and run:
```
sfc /scannow
```
This checks system files. Expect it to say "Windows Resource Protection found corrupt files and successfully repaired them." If it says it couldn't fix something, don't panic — we'll handle that next.
Then run dism — In the same admin Command Prompt, run:
```
DISM /Online /Cleanup-Image /RestoreHealth
```
This fixes the system image itself. Expect the progress bar to hit 20%, then 40%, then 100% — it can stick at 20% for a few minutes. That's normal. After it finishes, it'll say "The restoration operation completed successfully."
Restart again — After dism finishes, reboot. Your error should be gone.

I've fixed dozens of machines with this same error using those three commands in that order. chkdsk is the heavy lifter here — it repairs corrupt reparse points directly. sfc and dism clean up the aftermath.

Why This Error Happens

A reparse point is metadata that Windows attaches to a file or folder. You'll see them with junctions (like in C:\Users\Public\Documents), symbolic links, or with apps like OneDrive, Dropbox, and backup tools. When that metadata gets corrupted — say, from a power loss during a write, a failing hard drive, or a bad update — Windows chokes on it. The error code 0xC0000276 literally means "the reparse tag is invalid."

chkdsk with /f /r /x scans the NTFS volume, finds any corrupted or orphaned reparse points, and resets them. It also fixes any bad sectors that might be causing the issue. sfc then repairs any damaged Windows system files, and dism fixes the underlying system image if sfc can't find what it needs.

I've seen this error most often with OneDrive. If OneDrive was syncing during a crash, it can leave a reparse point that points to nothing. chkdsk catches and cleans that up.

Less Common Variations of the Same Issue

Sometimes chkdsk alone doesn't cut it. Here's what else might work:

Variant 1: Corrupted Junction in User Profile

If the error happens when opening a folder like C:\Users\YourName\AppData, the junction there might be damaged. Try this:

Open Command Prompt as admin.
Run cd /d C:\Users\YourName.
Run dir /al /s to list all reparse points. Look for lines that say <JUNCTION> or <SYMLINKD>.
If you see one with a weird file path or one that doesn't exist, delete it with rmdir <folder_name> (for junctions) or del <filename> (for symlinks). Be sure you know what you're deleting — wrong move can break apps.

Variant 2: OneDrive or Backup App Left a Mess

If you recently uninstalled OneDrive or a backup tool, it might leave behind reparse points. Uninstalling those apps doesn't always clean them. To check:

Open File Explorer.
Go to the folder that throws the error (like C:\Users\YourName\OneDrive if it's missing).
If you see a shortcut icon that's broken, delete the folder — but only after you've verified your data is backed up elsewhere. That reparse point is just a pointer; deleting it removes the pointer, not the actual files.

Variant 3: Hardware Failures

If chkdsk finds lots of bad sectors, your drive might be dying. Run wmic diskdrive get status in Command Prompt. If it says "Pred Fail," back up your data now and replace the drive. I've seen drives with reparse point errors that turned out to be failing SSDs.

Prevention

Don't let this happen again. Three things:

Keep your backups clean — If you use OneDrive, Dropbox, or any cloud sync, make sure they shut down properly before you power off your PC. A crash during sync is the #1 cause I've seen.
Run chkdsk monthly — Schedule chkdsk C: /scan once a month. It checks without fixing, so it won't interrupt your work. If it finds problems, then run the full repair.
Update your firmware — For SSDs, check your manufacturer's site (Samsung, Crucial, WD) quarterly for firmware updates. Bad firmware can corrupt reparse points.

And if you use a backup tool that creates symbolic links or junctions — like some imaging software — test the restore once a year. I've seen backup reparse points that looked fine but were actually pointing to old snapshots that got deleted. Testing saves your bacon.