24" iMac regularly locks up during iTunes downloads

Older model: 2.8GHz Core 2 Duo CPU, Nvidia 8800GS video, 4GB RAM, 750GB HDD.
If I download, say, 10+ files in iTunes (podcasts, apps, even an album) there is a high likelihood of my entire computer freezing. I am still able to move the mouse and highlight application windows, but cannot force-quit or do anything other than power cycle the system.
This system shipped with Leopard and had the problem. I have since purchased and clean-installed Snow Leopard, upgraded to iTunes 10, etc. I have also set iTunes to download multiple files serially as opposed to in parallel; this slightly reduced the chances of it happening, but it is still frequent.
I do have what I would consider to be a large amount of both music and apps. Any ideas?

Yes, no kidding.
See as need be: http://www.verizonfioswiki.com/index.php/Using_Your_Own_Router
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ITunes locks PC during large downloads

This started happening about a month ago and there have been no major changes to my system (I've had this system for over a year).
PC running Windows Home 7 Premium 64 bit with SP1 and all available Microsoft updates installed. iTunes is version 10.6.1
The sytem locks during downloads - usually they need to be large such a video podcasts and now a movie. Downloads start and proceed at high speed to a point and then progress on the download stops and the indication of remaining time starts to go up. For example, I was trying to download a 383MB video podcast and it flew along up to 62.1MB and showed 2 minutes remaining to complete in the status. Then it went to 3, 4, etc. After 2 minutes elapsed time, it was 7 minutes and after 20 minutes it was 2 hours. However, the indication of estimated completion time is the only thing on the system that is active. The clock in the system tray stops almost immediately after the download progress stops nothing else is accessible - even Ctrl Alt Del and Ctrl Shift Esc do nothing, The only thing I can do is physically power off and them it takes over 20 minutes to get back into iTunes as I have a large library (over 24000 songs and about 30 movies).
This has happen consistently in several locations with high-speed internet and I've tried turning off wifi and going hard wire. Yesterday, I got a movie and the download to Flixster went fine and the iTunes download locked up. I have removed and reinstalled iTunes and deleted the content in the download directory. Also have unsubscribed and resubscribed to podcasts. Ideas on next steps would be appreciated.

Additional info - after 6 iterations of donwload/lock/reboot, I did successfully get the movie I bought (2.25GB of content) and it does play.
There are Bonjour errors in my application log:
System
Provider
[ Name]
Bonjour Service
EventID
100
[ Qualifiers]
0
Level
2
Task
0
Keywords
0x80000000000000
TimeCreated
[ SystemTime]
2012-06-12T11:41:38.000000000Z
EventRecordID
53865
Channel
Application
Computer
BLACKPEARL
Security
EventData
Client application bug: DNSServiceResolve(5c:59:48:4b:5b:29@fe80::5e59:48ff:fe4b:5b29._apple-mobdev._tc p.local.) active for over two minutes. This places considerable burden on the network.

During Itunes download for windows 7 64bit, error message says "Service Apple Mobile device" failed to start

During Itunes installation on my Windows 7 64 bit computer.. I get the following message which won't allow installation:
Service "Apple Mobile Device" failed to start. Verify that you have sufficient privileges to start system services.
This occurred after an itunes update to my computer that produced a corrupted msvcr80.dll file. So I deleted Itunes and reinstalled.

Redo the install, following the below procedure. However, when you re-install Itunes, right click and run the install as administrator. For Win 7, I think you have to hold down the shift key when you right click and then "run as administrator" will be an option.
Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes

Error during itunes download

I have a PC with Windows and I am trying to download iTunes so that I can manage the files on my iPod Nano. However, the download is interupted 3 times by a variety of errors:
"An error occurred during the installation of assembly 'Microsoft.VC80.CRT.type="win32".version="8.0.50727/6195." .publicKey Token="11fc8b3b911e18e3b" .processo rArchitecture="x86". Please refer to Help and Support for more information. HRESULT: 0x80070002."***This error occurs during the Publishing product information, I click OK and it appears to continue downloading.
Service 'Apple Mobile Device' (Apple Mobile Device) failed to start. Verify that you have sufficient privleges to start system services" ***This error occurs during the Status: Starting Services. I attempt to click Retry several times before clicking Ignore. It appears to continue downloading.
I recieve error #2 a second time and then the download stops.
What am I doing wrong? How can I get iTunes downloaded on my computer?
Thanks so much in advance.

if it helps at all...
I downloaded Quicktime seperately from iTunes and i got that with no problem and it worked just fine but i cant get iTunes at all
and i have follwed the instructions on the website about uninstalling everything but nothing seems to be working
...is there any possible way that anybody can help me out with this.
any help that anyone can offer is very greatly appreciated,
Please & Thank You.

Frequent iMac 3.06 hangs during iTunes usage

I have an iMac 3.06Ghtz with 4GB RAM, 1TB and find I get random system freezes every few days.
There is not one thing I can do to replicate the problem, but I'm sure it's iTunes related.
It first started about 2 months ago when I was buying albums for download. Some downloads would complete, but then on some tracks it would hang. Upon restarting and trying again, some of the files would not be there to retry, so I'd have to ask Apple support to re-enable them. This eventually seemed to be sorted out in the last couple of iTunes updates.
However, I still find that when iTunes starts playing a new track, often a few seconds in, iTunes stops and becomes unresponsive. It's completely random when it does this. After rebooting, playing the same track does not cause a hang!
Finder appears ok to start with, but I can't launch any new programs and anything I now click on will hang.
I can't bring up the force quit dialog. I can't even log in remotely via terminal to kill any processes.
I have no choice but to do a hard reset every time.
Upon reboot, there is no crash report notification and nothing obvious in the console.
Things I've tried
- Archive and reinstall
- Repair disk / repair permissions
- Re-install iTunes
- Removed all startup programs
- Hardware test (no problems)
- Removed all USB devices
I've had Macs for a few years now, but this is really bugging me because there's no logical thing to try to sort it out. Especially as it was the most expensive iMac available at the time! I've never had to reboot a computer as often as this in my whole IT career. Argghhh!
Does anyone have any ideas please? Thanks.

Try creating a new admin user account in System Preference Accounts pane.
Log out and log in to the new account. Do you have the same issue in the new user account?
If you do, there is a general system or hardware issue that needs to be further assessed.
If you do not, there is a problem in your current main user account. You can continue to troubleshoot while narrowing the possibilities to something in your account, or you can transition to a new account.
Note: An +Archive and Install+ will not fix a user account-related problem, because it preserves your existing user accounts.

Lost wifi connection during iTunes download

I frequently got my wifi network dropped when I try to download iOS updates or apps updates through iTune. I would lose all network connection despite the wifi signal is still strong. I need to turn off the wifi on my iMac and then turn it back on to restore the network access. I tried to switch off the antivirus scan but that didn't help neither. Does anyone have a clue?
Thanks a lot!

You might be better off posting this on a hardware or networking forum. Even if your wi-fi signal is strong somebody else's may be stronger and messing up your reception. It could even be you doing it to yourself if you have too many wireless things in your house all using the same channel. Occasionally somebody new moves into our neighborhood. I use a wireless network provide and it only needs somebody moving into an apartment across the street and setting up a router to default channel 6 and bang goes my wireless connectivity (I can't reconfigure the provider's node channels)

IMac (Intel) locked up during iPhoto session

My wife was working between iPhoto and Photoshop Elements 9. After migrating edited photos, she was viewing them in iPhoto fulluscreen when the cursor disappeared and the computer basically locked. I would not respond to mouse or keyboard (both wireless) input. Could not perform 'Force quit'; ended up doing a power button shutdown and then restart. The following is the last part of the console message log including the point where the computer locked and the subsequent restart:
8/12/12 5:13:10 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          Begin Preprocessing image
8/12/12 5:13:10 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          Preprocessing 1200
8/12/12 5:13:10 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          called getImage
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          returned getImage
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          called getImage
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          called getImage
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          returned getImage
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          Saving DOM for media : 1200
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          Adding 1200 to accumulator
8/12/12 5:13:12 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          End Preprocessing image
8/12/12 5:13:23 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          toast deferred because main window is not active, try again later...
8/12/12 5:13:55 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          Error: Error #1502: A script has executed for longer than the default timeout period of 15 seconds.
8/12/12 5:13:55 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]                    at flash.utils::Timer/tick()
8/12/12 5:14:00 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          wrote backup tally count: 18
8/12/12 5:14:00 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          FLV: loaded 0 open folders
8/12/12 5:14:00 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          saving 0 open folders
8/12/12 5:14:00 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          main: return 0
8/12/12 5:14:01 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          config: -1073745372 pri 1config: -1073745372 pri: 1Start canMigrate
8/12/12 5:14:01 PM          [0x0-0x3f03f].com.adobe.ElementsOrganizer9[443]          End canMigrate returns with 13
8/12/12 5:14:18 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x10042ce10 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x10042ebf0 "The requested URL was not found on this server.")
8/12/12 5:14:18 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x10015c620 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x100196c70 "The requested URL was not found on this server.")
8/12/12 5:14:18 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x100447f40 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x100447620 "The requested URL was not found on this server.")
8/12/12 5:14:18 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x1004456d0 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x10043fa90 "The requested URL was not found on this server.")
8/12/12 5:14:19 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x100424c40 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x100442cd0 "The requested URL was not found on this server.")
8/12/12 5:14:20 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x127a1d3f0 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x123ee8e40 "The requested URL was not found on this server.")
8/12/12 5:14:20 PM          quicklookd[449]          Failed provisional load: Error Domain=NSURLErrorDomain Code=-1100 UserInfo=0x123e39380 "The requested URL was not found on this server." Underlying Error=(Error Domain=kCFErrorDomainCFNetwork Code=-1100 UserInfo=0x123e39320 "The requested URL was not found on this server.")
8/12/12 5:21:59 PM          iPhoto[383]          Error in CoreDragGetMouseLocation: -1850
8/12/12 5:34:08 PM          com.apple.launchd[1]          *** launchd[1] has started up. ***
8/12/12 5:34:27 PM          com.apple.launchd[1]          (com.apple.xprotectupdater[42]) Exited with exit code: 252
8/12/12 5:34:29 PM          com.apple.WindowServer[83]          Sun Aug 12 17:34:29 Macintosh-0022413075b3.local WindowServer[83] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
8/12/12 5:34:47 PM          com.apple.launchd.peruser.502[156]          (com.apple.Kerberos.renew.plist[200]) Exited with exit code: 1
The mac is a 3.5 year old 20" Intel iMac, core-duo, 4 gb ram, with a 500 mb hd. We have had issues with the mac 'freezing' in the past, but not recently. If anyone can shed light on the cause, or point me in the right direction, it would be greatly appreciated.

Hello Agaber
Try to force quit the application with the steps in the article below. You also may have to gold the power button down for about 10 seconds to force your iMac to power off.
Mac OS X: How to quit an unresponsive application using Force Quit
http://support.apple.com/kb/ht3411
Regards,
-Norm G.

Mac Pro Dragging/Locking Up During File Downloading??

Within the past week I have been experiencing a problem with my Mac Pro where it drags/locks up and delays anytime I am downloading something. For example if I am downloading something it may take me several times pushing a key when typing to get it to show up or having to click an item or button several times to get a response or for it to work. This applies in all areas or anything I try to do it is not specific to any software. This only happens when downloading though... The files are being saved to an external hard drive so there isn't a problem with hard drive space. The moment everything is downloading everything is back to normal. I have also noticed that this also happens when uploading as well??
I have had this mac pro for about a year and half never experienced this problem before... The specs for it are 4GB RAM & 2 X 3 GHz Dual Core Processor
Any ideas or suggestions?? Any help is greatly appreciated!! I have already tried running repair disk permissions & IceClean and neither of them corrected the problem??

Replace and repair the external drive (might want to research make/model and compatibility).

Mountain Lion locks up during iTunes Airplay

Mountain Lion (10.8.0) - MacBook Retina - Clean Install (Not upgraded)
While using Airplay in iTunes I've had two incidents today where the computer will lock up. No screen corruption, but there is no response to the mouse and keyboard. The only thing that can be done is to hold the power button and restart.
Upon restarting there is a message stating that the system was shut down due to an error. The message gives the option to re-open the applications that were open at the time of the crash. The first time this happened all the applications did reopen, except iTunes. The second time they all did. ("They" being Chrome, Mail and iTunes.
Interesting woes. :-)

Perhaps your third-party software is not compatible and require updates (including iTunes.)
Or, you had a dysfunctional system to start, so try:
Reinstalling Lion/Mountain Lion Without Erasing the Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

ITune download with AOL

Message during iTune download on AOL; iTunesSetup.exe was being blocked due to invalid digital signature that verifies its publisher.

Message during iTune download on AOL; iTunesSetup.exe
was being blocked due to invalid digital signature
that verifies its publisher.
Although I didn't have this exact problem, I did have and itunes installer error which I believe was caused by AOL download. Try downloading with internet explorer outside of the AOL frame work (PS: keeping your connection to AOL).

My iTunes library has completely disappeared during a download of some music from the store

This morning, during a download of some music from the iTunes store, iTunes appeared to crash, as the downloads all paused and the spinning wheel appeared. Itunes then shut itself. After reopening it, all of my music, apps, vids, etc (everything), had disappeared, and iTunes was basically blank as if I had just opened it for the very first time on my computer, with iTunes match, Home Sharing, etc all signed out.
I know this has happened for other people but having looked through the discussions they all seem to be under different cirumstances. I'm running a mid 2012 2.9 Ghz macbook pro with 8GB memory, on OS X 10.8.5, with itunes version 11.1.1 which I updated to, around a week ago, when prompted to by the app store.
I've located all the music files on my hard drive in the iTunes media folder and everything appears to be there, just no longer showing in the iTunes app. I know that if I sign into iTunes match that I'll be able to access my library through that online, but I'd like to access the music on my hard drive so I don't need an internet connection to listen, so is there any way of just re-directing iTunes to the media folder or do I need to just import everything from that folder manually?

Should also add, that when opening my iTunes preferences that the iTunes Media Folder Location appears to be the same one that supposedly has all the files in it. If I click change then I can see all the music, vids, etc that are on the hard drive, yet still nothing is showing in iTunes.

Even during the download of free content pops up an error can not connect to itunes store.

During the download of free content pops up an error can not connect to itunes store.

Got a bit further, but now just sat here with 2 apps waiting!
Wifi is fine, can surf, email, etc, but store is still not working.

HT4623 i bought an ipod touch got itunes downloaded on my computer but can't get it to connect to ipod because it is locked it was locked when i bought it how can i get it un locked

i bought an ipod touch and i got itunes downloaded on my computer but can't get it to connect to ipod because it is locked it was locked when i bought it how can i get it unlocked?

Place the iOS device in Recovery Mode and then connect to your computer and restore via iTunes. The iPod will be erased.
iOS: Wrong passcode results in red disabled screen
If recovery mode does not work try DFU mode.
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
For how to restore:
iTunes: Restoring iOS software
To restore from backup see:
iOS: How to back up
If you restore from iCloud backup the apps will be automatically downloaded. If you restore from iTunes backup the apps and music have to be in the iTunes library since synced media like apps and music are not included in the backup of the iOS device that iTunes makes.
You can redownload most iTunes purchases by:
Downloading past purchases from the App Store, iBookstore, and iTunes Store

During the latest iTunes download I received the following error: Service '(Apple Mobile Device) failed to start. Verify that you have sufficient privileges to start system services.

During the latest iTunes download I received the following error: Service '(Apple Mobile Device) failed to start. Verify that you have sufficient privileges to start system services.

Please Note I am the system Administrator

Many of my older ITunes downloads play perfectly well on my IMac but constantly skip to the next song or suddenly stop playing on my IPhone. The problem is the same with both my old 4s and my new 5s. I have tried deleting and re-downloading to the phones.

Many of my older ITunes downloads play perfectly well on my IMac but constantly skip to the next song or suddenly stop playing on my IPhone. The problem is the same with both my old 4s and my new 5s phones. I have tried deleting and re-downloading my music library to the phones, but the result is always the same.

I'm adding more information:
in Finder, my iMovie folders are all visible and accessible. When I click on a clip from iMovie Events folder, Quicktime opens and plays the clip. ALL my video is not missing - it just isn't showing up in the Event Library!
This happened all of a sudden, while I was working on iMovie project (on both computers).
All my Projects are intact, and play when I open them.

24" iMac regularly locks up during iTunes downloads

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