Fix NS_E_PDA_SYNC_FAILED (0XC00D1237) in WMP

Driver Issue — The Real Culprit

Every time I get a call about this error, it's almost always the same thing: the device driver for your portable media player is missing, outdated, or Windows grabbed a generic driver that doesn't support Media Transfer Protocol (MTP) properly. I've seen this on everything from old Zunes to modern Android phones in MTP mode.

Here's the fix — don't bother reinstalling WMP, that's a waste of time.

Disconnect your device from the PC.
Open Device Manager (right-click Start > Device Manager).
Look under Portable Devices or Universal Serial Bus controllers. You might see your device listed with a yellow exclamation mark, or listed under Other devices as "Unknown device."
Right-click it and select Update driver > Browse my computer for drivers > Let me pick from a list of available drivers on my computer.
If you see "MTP Device" or "Portable Device" in the list, select it. If not, click Have Disk and browse to C:\Windows\Inf\ — select wpdmtp.inf.
Hit Next, let it install, then reconnect the device.

For Android phones, make sure USB debugging is off (it sometimes breaks MTP). Go to Developer Options and toggle it off. Also, when you plug in, pull down the notification shade and set USB mode to file transfer (MTP) — not charging only, not PTP.

If you're on Windows 10 or 11 and using a generic MTP driver, try grabbing the specific driver from your device manufacturer's site. For iPods, you need iTunes installed — the driver comes with it. For older devices like SanDisk Sansas or Creative Zens, the original vendor software usually bundles the driver.

I've also seen this happen after a Windows Update swapped out the MTP driver. Roll back the driver in Device Manager if the issue started after an update. Right-click the device > Properties > Driver > Roll Back Driver.

USB Port or Cable — Second Most Common

If the driver's fine, next suspect is the cable or port. I don't care how new the cable looks — try a different one. USB 3.0 ports can be flaky with older devices. Plug into a USB 2.0 port on the back of the PC (the ones on the front case are sometimes poorly wired).

Also, don't use a USB hub. Direct to the motherboard is the only reliable path. I've had users spend hours on this error only to swap from a front USB 3.0 to a rear USB 2.0 and have it work instantly.

Quick test — if the device shows up in File Explorer but WMP still throws the error, it's not the cable. If the device doesn't show at all, the cable or port is your problem.

Corrupted WMP Library Database

Less common but still a regular occurrence — the sync partnership database inside WMP gets corrupted. It happens when you force-disconnect the device during a sync, or after a system crash. The fix is to delete the database and let WMP rebuild it.

Close WMP.
Press Win + R, type %LOCALAPPDATA%\Microsoft\Media Player, hit Enter.
Delete everything in that folder. Yes, everything. You'll lose your playlists and sync history, but you can rebuild those.
Restart WMP. It'll re-scan your library and recreate the database.

This also clears any corrupted sync partnerships. After the rebuild, plug your device back in and let WMP re-establish the sync relationship.

Quick-Reference Summary Table

Cause	Fix	Time to Try
Missing/incorrect MTP driver	Update driver via Device Manager using `wpdmtp.inf` or manufacturer driver	5-10 min
Bad USB cable or port	Swap cable, use USB 2.0 rear port, avoid hubs	2 min
Corrupted WMP library database	Delete contents of `%LOCALAPPDATA%\Microsoft\Media Player`	5 min

One more thing — if your device is a modern phone running Android 11 or newer, check that it's not in Android Auto mode when connected. Some phones switch to "Android Auto" mode automatically when plugged into a PC, which breaks MTP. Go to your phone's USB preferences and set it to File Transfer / Android Auto.

That's it. These three fixes will cover you in nearly every case I've seen. If none of this works, the device itself might be dying — try it on another PC to confirm.