Itunes cannot start - unknown error 200.

I've installed the latest update to itunes and now it won't start. each time i click on itunes i get an error.
The iTunes application cannot be opened. An unknown error occurred (-200).
I've tired to remove the plist file and see if it starts then, but after asking to accept the terms and conditions the same message came up.
What should I try next?
Thanks,

Turns out a good old restart fixed it

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ITunes Not Working (Unknown Error -200)

After a power outage I rebooted my computer and clicked the iTunes icon. An error box appeared reading "The iTunes application could not be opened. An unknown error occurred. (-200)"
I then downloaded the latest version of iTunes (7.1.1.5) and tried reinstalling but a little after half way through the installation another error came up. It said "Error writing to file C:\Program Files\iPod\bin\iPodService.Resources\zh_CN.lproj\iPodServiceLocalized.dll. Verify that you have access to that directory."
Please help, I desperatly need my iTunes :[.

hmmmm. the first one (the -200) is typically caused by a problem with your QuickTime. (on 7.0.2.16 and higher versions, it shows up as an "itunes has detected a problem with your audio configuration" message.)
but the second one is a problem with a language resource amongst your itunes program files.
those are typically caused by damaged files, and damaged files can also cause QuickTime problems. so first let's try running a chkdsk over your C: drive.
for instructions (and/or guided help) see:
How to perform disk error checking in Windows XP
does the chkdsk find/repair any damage? if so, does the itunes 7.1.1.5 install go through properly? if so, does iTunes launch properly, or do you start getting an "audio configuration" message when you try to launch it?

Itunes wont start unknown error (-69) and cyclic redundancy check

I use an ipod shuffle and am on itunes 6 (or 6.1 maybe) on my windows compaq presario laptop. I was burning a number of disc from itunes and all seemed ok. The shut the computer down and the next day came to do the same thing and itunes wouldn't start the application with an unknown error (-69). I am also getting a cyclic redundancy error when I try to delete some music or picture files now aswell. I have tried to uninstall itunes and reinstall but this hasn't helped. I thought I might delete all my music and pictures off the hard drive as they are also copied and stored on an external drive but it wont let me delete certain music and picture files now. Can anyone help. Have tried to do a CHKDSK on my pc but that's not helping either and it is running very slowly now. Anyone had the same problem and been able to resolve it??

When you install from a CD, that CD could have been manufactured several months prior, and not have the latest anti-virus definitions.
While an internet connection is probably the most common vector for an infection, its not the only possible one. Any CD, removable drive, etc could be the source for a virus.
Because the computer is also running slow, its possible you have other applications running in the background. Some of which may have been inadvertantly installed.

ITunes cannot open. Error -200

Hi guys,
Any ideas what this could be?
My computer has also slowed down to a grinding halt over the last 24hrs and I cannot figure out why.
Cheers,
Mike

Mike the first thing to do is BACKUP!!!!!!!!!!!!!
Next check to see how much available space your HD has, if it's less than 15% of the total HD then it's probably too full. You can easily tell how much space it has by opening a Finder window, selecting the HD in the Sidebar and then typing Command I (I as in IVAN), it will look similar to:
If you have more than 15% of the HD available then the next thing to do is check the HD's health. First thing to do is open Disk Utility (Applications - Utilities - Disk Utility), highlight the internal HD, select First Aid tab and look for the S.M.A.R.T status, it will look similar to and if it's OK should say Verfied.
Please report back what you find out.

Unknown error (-200) when i start v7

i can't open itunes v7 because of this "unknown error (-200)".
and if i revert to v 6.0.5 i'm having lots of problems as well (that i didn't have before this GRMBL version 7)!
what is this unknown error (-200) and what can i do? i've been looking all over the web and on the apple site, can't find anything about it... help me out please!
thanks

i can't open itunes v7 because of this "unknown error (-200)".
that can be associated with a damaged QuickTime. (itunes needs a fully functional QuickTime in order to work.)
so let's first try a careful standalone QT 7.1.3 reinstall.
download and save a copy of the QT 7.1.3 standalone installer to your hard drive. (we'll run the install from there rather than online.) switch off antivirus and antispyware applications prior to the install.
Quicktime 7.1.3 Installers … get the one that doesn’t mention itunes
if that install goes through okay, does your itunes launch properly again?
(if you get an error message on the QT standalone reinstall, let us know what it says. include error message numbers if you're getting any.)

Itunes could not connect to itunes store - an Unknown Error Occured (502 )

PLEASE HELP !!!!!
For the last 3 days I have been trying to login to the itunes store, but have recieved the message "Itunes could not connect to itunes store - an unknown error occured (502)" each and every time. Can someone please tell me why this is happening and what I can do to fix the problem. I would really like to download some games onto my Ipod, but am having no luck.
Thanks
Elizabeth
Windows XP

I have been getting the "cannot access" result for several days, even trying again repeatedly throughout the day and night. It may have started after the last Windows security update. I have not changed anything else on my system prior to this happening, nor have either of the ISP's I use. I agree "something" must have changed, but there seem to be a lot of other people experiencing this same problem. If you are one of them, did it start after applying the Windows update?

I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store ,and in iTunes says An unknown error occurred (-50) ?

Hi:all
I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store
,and in iTunes says An unknown error occurred (-50) ?
Help Please.

See this link from another similar question. It may need patience to resolve. I think Thomas Reed's suggestion is best place to start.
App Store rejects buy of Mountain Lion: Apple Support Communities

Itunes cannot start

Anyone have any info on why itunes cannot start? When I attempt to start itunes I get an error message asking if I want to send an error log to Microsoft about the problem. Does anyone have a solution for this problem?

I have that exact problem. I run windows XP and it doesn't want to load. This is weird because i have been able to load it before. If we could get some tech support here, that would be great, because i need to update my iPod.

When i tried to sync my ipod it said "cannot sync. unknown error has occured(-39)

when i tried to sync my ipod it said "cannot sync. unknown error has occured(-39)" how do I fix it??

Are you syncing photos to the ipod? If so, the -39 in this context can sometimes indicate a damaged photo cache. Are you able to sync if you delete your existing photo cache? To find it, see the following document:
iTunes: Understanding the iPod Photo Cache folder

LR cannot Import - Unknown Error

I am getting this error message when trying to import a catalog "Lightroom could not import because of Unknown Error".
The catalog I am attempting to import contains about 6000 images and was built by the beta during the Beta phase. It opens fine by itself - as it worked throughout the beta. I have no problems opening it and working on it directly with LR3.0.
However, since this was my catalog for just a couple of projects during the Beta, I now want to fold it into my main catalog of some 19,000 images. My main catalog was my LR2.7 catalog and I have successfully converted it to LR3.0 - it opens fine and works fine.
Said in another way, while running 3.0, I can switch freely back-and-forth between these 2 catalogs using File | Open Recent
I am just unable to import the beta's converted catalog into it. After doing File | Import from Catalog, LR asks for the name - I navigate to the xxx.lrcat file and select it. The import starts and displays a Preparing to Import information window...perhaps for a second or two, then stops with the above message which is reported as a Warning .... however, the import stops at this point.
So, this is kind of serious......
Both catalogs are on the same drive, with plenty of free space.
What additional information do you require to resolve this ?
jc

thanks for the input .... I had some duplicates in the beta catalog. I
resolved them manually then removed them from the catalog and Optimized it.
I was then able to Import from Catalog without difficulty.
jc
From: Gary Jones UK
Sent: Wednesday, June 09, 2010 7:48 AM
To: Jim Camelford
Subject: LR cannot Import - Unknown Error
This has already been reported and the problem has been identified by Adobe.
The key post is this one: http://forums.adobe.com/message/2877882#2877882

When I turn iTunes on "an unknown error occurred (-42110) pops up?

When I turn iTunes on "an unknown error occurred (-42110) pops up?
It started happening after downloading the latest version of iTunes.
As well, I'm not sure if it has something to do with it but when I download purchases and they show complete, the next time I turn iTunes on, the purchase starts downloading again which is holding up other downloads. Frustrating.
Thanks!

Try this user tip for the 42110 error
https://discussions.apple.com/docs/DOC-4831

HT2292 hello i'm facing problem i downloaded iTunes version 11 32bit and after i installing the set up when i opened the iTunes a massages occur saying i tunes could not connect to iTunes store an unknown error occurred (-3212) even though my interne

Hello i'm facing problem i downloaded itunes version 11 32bit for windows 7 and after i installing the set up when i opened the iTunes a massages occur saying i tunes could not connect to iTunes store an unknown error occurred (-3212) even though my internet is on

Try this...
Triple click anywhere in the line below to select it and press Ctrl+C to copy it.
cmd /k netsh winsock reset
Press the WinLogoKey+R to open the run dialog, then Ctrl+V to paste, then press enter/return.
You should get something similar to this:
Reboot the computer and the problem should be resolved.
If it doesn't work then perhaps a full tear down and rebuild of iTunes will fix things. See Troubleshooting issues with iTunes for Windows updates for details.
tt2

I have a Windows 7 laptop, and recently the hardrive broke. I got it repaired and ever since, my ipod touch 4th gen does not connect to itunes and an unknown error (0xE8000012) appears. What do I do?

I have a Windows 7 laptop, and recently the hardrive broke. I got it repaired and ever since, my ipod touch 4th gen does not connect to itunes and an unknown error (0xE8000012) appears. What do I do?

try to restore in itunes bye putting in recovey mode turn the ipod off press the home button and plug in the ipod into the computer. an itunes shuld see it in recovery mode and click restore. and that should do the trick.

Hello, i just downloaded itunes on my acer laptop and its been giving me problems everytime i try to get on to the itunes store.. it gives me a message saying "itunes could not connect to the itunes store. an unknown error occurred. (310).plz help me out.

hello, i just downloaded itunes on my acer laptop and its been giving me problems everytime i try to get on to the itunes store.. it gives me a message saying "itunes could not connect to the itunes store. an unknown error occurred. (310).plz help me out. i do have the internet on but it keeps giving me the same problems .. thanks..

Hi Young Prada,
If you are having issues connecting to the iTunes Store, you may find the following article helpful:
Apple Support: Can't connect to the iTunes Store
http://support.apple.com/kb/ts1368
Regards,
- Brenden

My iphone is on recovery mode and i can´t turn on it, when i try to recover it from itunes i get: "unknown error (36), i´ve tried to do lot of things but i can´t solve my problem. please help!!

my iphone is on recovery mode and i can´t turn on it, when i try to recover it from itunes i get: unknown error (36), i´ve tried to do lot of things but i can´t solve my problem. please help!!

Hi, i had the same problem. Try to find the file "apple" or "itunes" don't know it anymore exactly. Ahm well you need to delet any information or just plug in your iphone into an other computer. important is that your iphone never has been pluged in this computer before. This was what i did, and it worked!

Itunes cannot start - unknown error 200.

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