iTunes 12.7 javascriptcore.dll crash again!!!

For general advice see Troubleshooting issues with iTunes for Windows updates.

The steps in the second box are a guide to removing everything related to iTunes and then rebuilding it which is often a good starting point unless the symptoms indicate a more specific approach. When reinstalling it may help to right-click on the setup file and use Run as administrator. It may also help to temporarily disable any non-Microsoft anti-virus.

Review the other boxes and the list of support documents further down the page in case one of them applies.

The further information area has direct links to the current and recent builds in case you have problems downloading, or want to revert to an older version if the current one won't work properly for you at the moment.

Your library and device backups should be unaffected by these steps but there are links to backup and recovery advice should it be needed.

tt2

tiesky wrote:

... I had thousands of music play counts just wish there was a way to downgrade and retain the play counts and playlists SIGH APPLE!!.

If you don't mind losing the stats since you upgraded to 12.7 see Empty/corrupt iTunes library after upgrade/crash.

If you want to capture the more recent plays too then a script called ExportImport can be adapted to export your current stats, which you can then import into the restored older library. I'd suggest you install 12.6.3 rather than 12.6.2.

tt2

I don't know if it's the same problem, but it also happens to me when connected to my work's domain network.

I've noticed some different behaviours:

• If I open iTunes from home when connected to my work's network via VPN, the app crashes.
• If I open iTunes offline and, when started, I connect via VPN, I can use the app without any problem.
• If I open iTunes offline from work but offline and, when started, I connect to the domain network, I'm not able to use the iTunes' online features (Apple Music and iTunes Store).

Anybody who knows what could be happening? I've also installed and uninstalled all Apple software many times. In my case, I use a Windows 7 PC.

I am also having this issue. Domain joined computers running Windows 7 and 10 Enterprise. Disconnecting the computers from the domain network allows iTunes to open. Please let us know what you find out. Thank you.

Quick question: how were you able to determine that javascriptcore.dll was the culprit? When I talked to Apple Support, they told me there was nothing they could do to actually analyze cause of the crash: it was all about "Try this workaround, try that workaround." It was very frustrating and, frankly, quite hard to believe. I expect better from Apple.

The error message only gives you so much information. I seem to recall similar launch time errors affecting some builds that revolve around proxy settings could be worked around by isolating the computer from the network when you launch iTunes. Then once it is running you can enable the network again.

tt2

Thanks. The support engineer I talked to didn't even ask for log files, even though I specifically asked if there were any log files they could use to diagnose the problem. I guess I just got unlucky and talked to the wrong person. Hopefully they get their act together and get us a fix soon!

I am running Windows 7 and not 10, but face the same issue with 12.7. It now crashes many times every day. I have seen this before 12.7 also, but much less frequently. I used to have to reset Internet Explorer settings (most likely due to proxy issues), but now it seems I have nailed it down to only having to delete this registry key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\MigrateProxy

As soon as I do that, I am able to restart iTunes

Does anybody know of a reliable place to download iTunes 12.6.2 for Windows 10? The only sites I've seen are the likes of fileHippo which doesn't offer https with a valid, signed certificate. I couldn't find it for download anymore on Apple's site.