FileFix

Fix error 0xc00d36c4 when a video won't play.

0xc00d36c4 has two very different causes. If your file is corrupted, we can often rebuild it — upload it and see a free preview. If it's a player or codec issue, we'll tell you, and it's a quick fix on your end.

Drop a broken video file here — the free preview shows what's recoverable before you pay.

Files up to 2 GB.

Free preview — pay only if you download ($19)

Your files auto-delete — delete them sooner anytime

No person looks at your file as part of repair

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Here's what we recovered.

Review the watermarked preview before checkout. Video previews are capped at 90 seconds.

Your files auto-delete — delete them sooner anytime

No person looks at your file as part of repair

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Choose a supported file to see what can be repaired before checkout.

You preview before you pay. If the download is materially worse than the preview you approved, we'll refund you.

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Good news — your file isn't damaged. No charge.

There's nothing to repair. If it still looks broken, the issue may be the player, codec, or viewer on your device rather than the file itself.

We couldn't recover this one.

The file is too damaged to rebuild, so there is nothing to preview and no charge.

Unrepaired files are kept encrypted for up to 30 days, then deleted.

FileFix can't fix that kind of file yet.

Right now we repair video, audio, document, and image files (MP4, MOV, M4V, MKV, AVI, TS, MTS, M2TS, MPG, MPEG, VOB, 3GP, WebM, FLV, M4A, WAV, MP3, AAC, FLAC, OGG, AIFF, XLSX, DOCX, PPTX, ODT, ZIP, PDF, AI, HEIC, and HEIF). We're adding support for more formats over time.

We store just your email and the file type — never the file itself. One message, when it's ready. No spam.

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FileFix can often repair this kind of damage if the file is recoverable.

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What error 0xc00d36c4 actually means

0xc00d36c4 is the error Windows shows — usually in the Movies & TV or Photos app — when it "can't play" a video. It's a catch-all, and it points at one of two very different problems. Getting the right one saves you time.

Cause 1: the file is corrupted. The video's structure is damaged or was never finished writing — often after an interrupted recording or a failed transfer off a camera or card. The footage is usually still inside; the file just can't be read. This is the case FileFix repairs: we rebuild the structure and produce a file that plays. Upload it and the free preview will show whether the footage came back.

Cause 2: the file is fine, but your player can't read this type of video. Windows is missing the software it needs to play that format, or the player is out of date. In this case the file is not damaged and there's nothing for us to repair. The fix is on your side: try a different player (VLC plays almost everything), update your player, or install the codec Windows suggests.

How to tell which you have: if the same file won't play in any player, on any device, it's likely corrupted — try a repair. If it plays fine somewhere else (another computer, VLC, your phone), the file is healthy and it's a player problem. We won't charge you to "repair" a file that isn't broken.

What we can and can't fix

We can usually fix

  • 0xc00d36c4 caused by a genuinely corrupted or unfinished file — the footage is there but the file can't be read.

We can't fix

  • 0xc00d36c4 caused by a missing codec or an outdated player — the file is healthy. That's a player fix on your end, not a repair. More →

How it works

  1. Upload Drop a supported video file in. It uploads over an encrypted connection. The repair runs automatically — no person watches your file.
  2. Free Watermarked Preview You see a free watermarked preview and exactly how much we recovered.
  3. Pay & Download If it's right, you pay $19 once and download a clean, full-quality MP4.

If the file isn't actually damaged, there's nothing to preview and no charge.

See what's recoverable.

Free preview · pay only if it worked · private & auto-deleted

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