How to Fix Windows Error 0xC00D1B78
By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-25
0xC00D1B78 is an HRESULT in the Windows Media facility, raised by the IMAPI CD/DVD writing service that Windows Media Player and Windows Explorer use to burn discs. In plain English: This archive operation is not supported. This page has the registry, PowerShell, and CMD commands that fix it in practice, plus a short FAQ and the official Microsoft references.
| Error code | 0xC00D1B78 |
|---|---|
| Decimal | Not published in MS-ERREF |
| Symbolic name | NS_E_UNSUPPORTED_ARCHIVEOPERATION |
| Platform | Windows |
| Subsystem | IMAPI CD burning engine |
| Official message | This archive operation is not supported. |
| Source | Microsoft MS-ERREF (HRESULT) |
What is 0xC00D1B78?
0xC00D1B78 is the HRESULT that IMAPI CD burning engine returns when it hits the condition described by the symbolic name NS_E_UNSUPPORTED_ARCHIVEOPERATION (unsupported archiveoperation). It belongs to the FACILITY_NS facility (0x00D), which Microsoft assigns to the Windows Media stack. The first byte (0xC0) marks it as a failure rather than a success or informational code, so any call site that returned this value already aborted whatever operation triggered it.
In plain language: the disc burning component asked the rest of Windows Media for something and got a no. That "something" is exactly what the official message names: This archive operation is not supported. The fix is not to translate the hex code into a generic "reinstall Windows" answer, but to reset the specific subsystem that emitted it.
When does 0xC00D1B78 appear?
Real-world triggers reported for this code (and the wider 0xC00D family) include:
- Opening a file inside IMAPI CD burning engine after a system upgrade or Media Feature Pack install/uninstall.
- Syncing media to a portable player, phone, or USB drive that registers under the disc burning path.
- Streaming protected content where the local DRM store was migrated from a different Windows install.
- Burning audio CDs or data DVDs from Windows Explorer or Windows Media Player.
- Embedded playback in a browser, PowerPoint, or HTML help file that uses the Windows Media ActiveX control.
- Encoding or capturing live audio/video with the Windows Media Encoder SDK against a device that was unplugged mid-session.
None of these are hardware failures. 0xC00D1B78 is a software-state error, which means the recovery path is almost always: stop the player, reset the affected subsystem, restart, retry.
How to fix 0xC00D1B78
Run the commands below from an elevated PowerShell prompt unless noted otherwise. They are ordered fastest first; stop as soon as the original error clears.
Restart the IMAPI CD burning service (PowerShell - run as Administrator)
# 0xC00D1B78 during a burn almost always means the IMAPI service stalled or the
# burner driver no longer matches the inserted disc format.
# 1. Restart the IMAPI service.
Stop-Service -Name IMAPI -Force -ErrorAction SilentlyContinue
Stop-Service -Name IMAPI2 -Force -ErrorAction SilentlyContinue
Start-Service -Name IMAPI -ErrorAction SilentlyContinue
Start-Service -Name IMAPI2 -ErrorAction SilentlyContinue
# 2. Confirm the burner is visible.
Get-CimInstance -ClassName Win32_CDROMDrive | Select-Object Name,Drive,MediaLoaded
# 3. Eject and reload the disc so Windows re-reads the table of contents.
(New-Object -ComObject Shell.Application).Namespace(17).ParseName("D:").InvokeVerb("Eject")
Start-Sleep -Seconds 5
Switch the burn engine
# When IMAPI keeps failing, fall back to the file-system staging path and let
# Explorer burn from the staging folder.
explorer.exe shell:CDBurning
# Drag the files into the window that opens, click "Burn to disc".
CMD fallback (run as Administrator)
:: 0xC00D1B78 - CMD equivalent of the PowerShell recovery above.
:: Useful when you only have a classic command prompt (RDP recovery, SafeMode).
taskkill /F /IM wmplayer.exe 2>nul
net stop WMPNetworkSvc 2>nul
regsvr32 /s wmp.dll
regsvr32 /s wmpdxm.dll
regsvr32 /s wmpasf.dll
regsvr32 /s wmasf.dll
regsvr32 /s wmvcore.dll
net start WMPNetworkSvc 2>nul
start "" wmplayer.exe
If you cannot fix it immediately
Until the underlying disc burning component is reset, you can usually work around 0xC00D1B78 by: (1) opening the same file in a different player, such as VLC or MPC-HC, which do not use the Windows Media DRM or library at all; (2) re-encoding the source to a non-protected, modern codec (H.264 + AAC in an .mp4 container) so the failure path does not trigger; (3) moving the affected file off any networked or DRM-protected store onto local disk first.
# Quickest workaround: install VLC and re-open the file.
winget install --id=VideoLAN.VLC -e
How to verify the fix worked
Re-run the exact operation that originally returned 0xC00D1B78. Then confirm the underlying subsystem is healthy with these checks:
# 1. Windows Media Player must report a version, not error out.
(Get-Item "$env:ProgramFiles(x86)\Windows Media Player\wmplayer.exe").VersionInfo.FileVersion
# 2. The streaming service must be running.
Get-Service -Name WMPNetworkSvc | Select-Object Status, StartType
# 3. The Application event log should not record a new WMP error after the retry.
Get-WinEvent -LogName Application -MaxEvents 50 |
Where-Object { $_.ProviderName -match 'Media' -or $_.Message -match '0xC00D' } |
Select-Object TimeCreated, Id, LevelDisplayName, Message
If the event log is clean and the operation completes, the fix held. If 0xC00D1B78 reappears immediately, the recovery path was not the right one for your subsystem; jump to the FAQ below for the next branch.
Frequently asked questions
What does 0xC00D1B78 mean exactly?
0xC00D1B78 (NS_E_UNSUPPORTED_ARCHIVEOPERATION) is the Windows Media facility's way of saying: This archive operation is not supported. It is not a security alert and not a hardware failure; it is a state error inside IMAPI CD burning engine.
Is 0xC00D1B78 dangerous?
No. On its own, 0xC00D1B78 only signals that one Windows Media operation failed. It does not indicate malware, disk corruption, or kernel damage. If you see it repeatedly across unrelated files, suspect a corrupt IMAPI CD burning engine install rather than a deeper problem.
Will reinstalling Windows fix it?
Usually no. A full Windows reinstall is a sledgehammer for what is almost always a disc burning configuration issue. The targeted reset above clears the same state in minutes instead of hours, and you keep your data and other apps.
Does 0xC00D1B78 affect Windows 10 and Windows 11 the same way?
Yes. The HRESULT layout is defined by MS-ERREF, so the symbolic name NS_E_UNSUPPORTED_ARCHIVEOPERATION and the meaning of 0xC00D1B78 are stable across Windows 7, 8, 10, and 11. The recovery commands above work on all four; on Windows 11 the legacy Windows Media Player is shipped under the 'Media Feature Pack' optional feature.
How is 0xC00D1B78 different from a generic "Windows Media Player cannot play this file" message?
The generic message is the user-facing string. 0xC00D1B78 is the underlying HRESULT that the engine returned to the UI. Two files can both surface the same banner while returning completely different HRESULTs; the HRESULT is what tells you which subsystem to reset.
Related error codes
Other codes in the same Windows Media facility you may want next:
- How to fix Windows error 0xC00D1B76
- How to fix Windows error 0xC00D1B77
- How to fix Windows error 0xC00D1B79
- How to fix Windows error 0xC00D1B7A
Related fixes
Related guides worth a look while you sort this one out:
- How to Fix Windows Error 0xC00D1B72
- How to Fix Windows Error 0xC00D1B73
- How to Fix Windows Error 0xC00D1B74
- How to Fix Windows Error 0xC00D1B75
- How to Fix Windows Error 0xC00D1B76
- How to Fix Windows Error 0xC00D1B77
References
- Microsoft Learn, MS-ERREF (Windows Error Codes): https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-erref/705fb797-2175-4a90-b5a3-3918024b10b8
- Microsoft Learn, HRESULT structure: https://learn.microsoft.com/en-us/windows/win32/com/structure-of-com-error-codes
- Microsoft Learn, Windows Media Player: https://learn.microsoft.com/en-us/windows/win32/wmp/windows-media-player-sdk
- Microsoft Learn, Windows Media Format SDK: https://learn.microsoft.com/en-us/windows/win32/wmformat/about-the-windows-media-format-sdk
- Microsoft Learn, IMAPI v2 reference: https://learn.microsoft.com/en-us/windows/win32/imapi/portal
Compiled from the Microsoft MS-ERREF HRESULT reference on 2026-05-25. Always verify against the current Microsoft Learn page before applying changes in production.
Field notes from real Windows incidents
When I work on the 0xC00D1B78 symptom the rhythm I lean on is the one I have built over years of these tickets. DISM RestoreHealth needs network or a known-good source image; the most common cause of a failed RestoreHealth is a blocked Windows Update endpoint. Windows error codes come in a handful of families; once you recognise the family, the doc page is one search away. STOP codes look terrifying but the first DWORD almost always points directly at the responsible driver.
Tools I actually reach for
For the 0xC00D1B78 symptom on Windows the cheapest signal I can land usually comes from Event Viewer (eventvwr.msc), then Windows Performance Recorder, DISM and sfc when Event Viewer (eventvwr.msc) cannot see the layer the fault sits in, and Windows Error Lookup Tool (err.exe) for the cases where neither of those answers cleanly. That ordering is not academic. It matches the layers the failure tends to surface through, so the cheap signal lands first and the heavier tooling only comes out when the simpler answer does not hold up under scrutiny.
Verification I run before I close the ticket
Before I mark the 0xC00D1B78 symptom resolved on a Windows unit, the verification loop below is what I actually run. Each step proves a different layer is green, and the order matters - the cheap checks gate the more expensive ones.
sfc /scannowIf that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.
Get-WinEvent -FilterHashtable @{LogName='System'; Level=1,2; StartTime=(Get-Date).AddDays(-7)}If that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.
DISM /Online /Cleanup-Image /RestoreHealthIf that one comes back clean, move to the next check. If it does not, stop and dig in there before layering more verification on top of a red signal.
err.exe 0xXXXXXXXX # symbolic decodeOnly when every line above runs clean do I close the ticket and update the runbook with the timestamps.
Where I check first when the docs disagree
When two sources contradict each other on a Windows detail, the disambiguation order I lean on is stable. I usually start at techcommunity.microsoft.com/category/windows for the ground-truth view on Windows. I usually start at github.com/microsoft/Windows-Driver-Frameworks for the ground-truth view on Windows. I usually start at support.microsoft.com for the ground-truth view on Windows. I usually start at learn.microsoft.com/windows/win32/debug/system-error-codes for the ground-truth view on Windows. Random blog posts and reseller wikis are signal, not ground truth, and I treat them as such until the references above either confirm or contradict the claim.
Pitfalls I have walked into on this exact path
The shortcuts that look smart on the 0xC00D1B78 symptom have a habit of biting back. The pitfalls below are the ones I have personally walked into on a Windows unit, not things I read about. STOP codes look terrifying but the first DWORD almost always points directly at the responsible driver. Reliability Monitor is the single most underused triage surface in Windows — it gives 30 days of crash history without writing a query. When in doubt I revert to the slower path that the manual prescribes - the time I save by skipping it is always smaller than the time I spend cleaning up afterwards.
What I tell the next on-call
When I hand the 0xC00D1B78 symptom off to the next person on rotation, the three lines I leave in the runbook are these. First, the symptom signature for Windows on the Windows family - not a paraphrase, the exact string that surfaces. Second, the diagnostic that gave the highest signal in the least time. Third, the exact verification command whose green output justified closing the ticket. That trio is what turns a one-off fix into a runbook entry the next engineer can use without paging me at three in the morning.
I also add a one-line note on the cost of getting this wrong. For the 0xC00D1B78 symptom on a Windows unit, the cost is rarely the replacement part. It is the downtime, the second site visit, and the trust deficit you spend with whoever owns the asset when the fix does not hold. That framing keeps the next on-call from choosing the cheap-looking shortcut that ends up costing the most in elapsed hours and goodwill.