ITunes won't launch on PC -- trying to deauthorize

I recently purchased a Mac Book for my Mother. We are trying to deauthorize her PC which she has purchased and downloaded music to via iTunes. Unfortunately, when we launch iTunes, an error pops up saying:
"Apple Application Support was not found.
Apple Application Support is required to run iTunes. Please uninstall iTunes, then install iTunes again.
Error 2"
All I am wanting to do is get iTunes launched so I can deauthorize this computer which we originally downloaded music to.
Thanks.

What operating system does she have, Ron? XP, Vista or 7?
If Vista or 7, is it a 32-bit or 64-bit version?

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ITunes won't launch. Have tried (I think) everything.

Okay, I want to get a little something off my chest and say that it is absurd how difficult it is to get help with iTunes, honestly. Really frustrating me ;_;
Moving on.
I recently got a new laptop, custom built and shipped last week. It's a Dell, 1GB RAM, 1.73GHz Pentium Processor, and all-around a pretty decent machine. Anyway, so I was looking to play music from my iPod through my computer, so I go to DL iTunes, and it works, I listen to music for a few hours, and then shut it down to go to sleep. I start back up the next morning, attempt to start iTunes, and nothing happens. I ctrlaltdel to check the task manager, and iTuneshelper is running, along with iPodmanager, stuff like that, but not iTunes.exe.
So I restart. Still doesn't load. I turn restart and turn off my firewalls. Still doesn't work. Restart again, uninstall iTunes and Quicktime, come back, re-download and reinstall, still nothing. Uninstall Quicktime only, DL the Standalone quicktime, install it, still doesn't work. Go through the whole msconfig deal. Still nothing. So, here's a list of things that have tried and not worked, for easy reference:
-Restarting
-Uninstalling iTunes/Quicktime and Re-DL'ing and reinstalling
-Uninstalling Quicktime, DL'ing Standalone, reinstalling QT.
-msconfig stuff
-Completely uninstalling McAfee.
Oh, yeah, I'm running Windows XP, by the way.
Also, my firewall has been turned off the entire time, so I know it's not that.
So, seeing as I'm going crazy without the ability to listen to my music, I would appreciate some help. Thanks to anyone who can help me.

Okay, I want to get a little something off my chest
and say that it is absurd how difficult it is to get
help with iTunes, honestly. Really frustrating me
Moving on.
I recently got a new laptop, custom built and shipped
last week. It's a Dell, 1GB RAM, 1.73GHz Pentium
Processor, and all-around a pretty decent machine.
Anyway, so I was looking to play music from my iPod
through my computer, so I go to DL iTunes, and it
works, I listen to music for a few hours, and then
shut it down to go to sleep. I start back up the next
morning, attempt to start iTunes, and nothing
happens. I ctrlaltdel to check the task manager,
and iTuneshelper is running, along with iPodmanager,
stuff like that, but not iTunes.exe.
So I restart. Still doesn't load. I turn restart and
turn off my firewalls. Still doesn't work. Restart
again, uninstall iTunes and Quicktime, come back,
re-download and reinstall, still nothing. Uninstall
Quicktime only, DL the Standalone quicktime, install
it, still doesn't work. Go through the whole msconfig
deal. Still nothing. So, here's a list of things that
have tried and not worked, for easy reference:
-Restarting
-Uninstalling iTunes/Quicktime and Re-DL'ing and
reinstalling
-Uninstalling Quicktime, DL'ing Standalone,
reinstalling QT.
-msconfig stuff
-Completely uninstalling McAfee.
Oh, yeah, I'm running Windows XP, by the way.
Also, my firewall has been turned off the entire
time, so I know it's not that.
So, seeing as I'm going crazy without the ability to
listen to my music, I would appreciate some help.
Thanks to anyone who can help me.
Hope this will help !
Since downloading itunes rev6 have been unable to use itunes...error message when launched "quicktime not able to initiate ..."
Apple procedure proposed through Windows XP error message function did not work..this has been the case since 22/11/2006.
Yesterday..went through the following procedure :
1/ uninstall Quicktime only
2/ re download itunes rev6 from apple site
3/ during download process "uncheck" installation proposition to have itunes as the prefered audio player on my PC
4/ complete installation process.
5/ re launch my computer..
6/ I checked that Quicktime worked ..It did ( first time since Nov 11 !)
7/ launch itunes = didn't open but no error message ?
8/ go into desktop configuartion & "personnalize option" & declare itunes as your prefered audio player
9/ re-launch computer..
10/ Surprise it worked !
Good luck & by the way totally agree with your opening comment..as I have just spent 6 weeks & endless time browsing the net to try to solve my problem..
Seeing the cost of the product which I love...very poor support organization = bad point for Apple!
JeanMarcJC

ITunes won't launch if iPod is connected but ejected

If I connect my iPod (set to Disk Use, no auto-launch of iTunes), then eject it through the Finder, iTunes won't launch. It hangs with no window until force quit or the iPod is unplugged. I've noticed this through several versions of iTunes.
Note that I found this topic already in existence here, but I felt that the issue needed a bump to the top of the list.

Does your quicktime work perfectly? I got that message when I tried to open iTunes 5 a couple times, and my quicktime wasn't being sensed by the computer at all. It was just there.

Itunes won't launch since update

Seems like i have the same problem as a lot of people.
Since last update itunes won't launch
Just get a white screen and the blue circle going around the pointer.
Have tried the complete unistalll and reinstall without success
One thing i noticed is that when it freezes and i open task manager to close it down it says 32 bit next to itunes not 64 bit?
Is the wrong version being downloaded?

Without trying to be funny here, why should the problem be with my user account or my PC!
Without trying to be funny, you've accidentally succeeded in being a bit funny here.
This is a user-to-user troubleshooting forum. Folks come here to troubleshoot their problems. So we, quite naturally assume that's what you were trying to do, and reply to try to help you fix it. The reason why you see so many people here saying there are problems is that this is where people come if they have problems and want to fix them.
If you believe the problem is all at Apple's end, and would like to register a sort of complaint with them (rather than do any troubleshooting of your problem), then it makes a heck of a lot more sense to contact Apple directly via the product feedback pages. (Because this is primarily an user-to-user forum, there's no guarantee an Apple person will see your post here. They will read your feedback via the form, although they also say they will not respond.) Here's a link through to the iTunes product feedback form:
http://www.apple.com/feedback/itunesapp.html
(Given that you're not here to troubleshoot, I'll bid you adieu, and desubscribe from this particular topic.)

My itunes won't work so i tried reinstalling and when it starts an error pops up that says: "the feature you are trying to use is on a network resource that is unavailable. click ok to try again, or enter an alternate path to a folder containing the insta

my itunes won't work so i tried reinstalling and when it starts an error pops up that says:
"the feature you are trying to use is on a network resource that is unavailable. click ok to try again, or enter an alternate path to a folder containing the installation package 'Itunes.msi' in the box below
please help, its frustrating

first, head into your Add/Remove programs and uninstall your QuickTime. if it goes, good. if it doesn't, we'll just attend to it when we attend to itunes.
next, download and install the revo uninstaller http://http://www.revouninstaller.com/revo_uninstaller_free_download.html. use it to clear any existing itunes and/or QuickTime installation configuration information from the PC.
next download itunes. it worked for me hope this is helpful!!
oonce you get into the revo uninstallergo thru to delete itunes hit uninstall on the itunes icon then you will go thru to it will tell u the same nmessage about the feature and network hit cancell then go thru and hit scan (make sure bthe advance scan button is pushed) this will take awhile but go thru the list and hit everything associated with itunes. hit delete then install itunes again. it worked for me hope it works for you!

"itunes.exe-entry point not found" error message, itunes won't launch

32 bit
xp pro
itunes won't launch
HELP!

Try removing iTunes and all Apple related software using the instructions in this Apple support document and downloading a fresh copy of the newest version from Apple's website.
http://support.apple.com/kb/ht1925
B-rock

My itunes won't launch even after reinstalling. Looked in itunes folder and somehow lost itunes library? HELP!

My itunes won't launch even after reinstalling. Looked in itunes folder and somehow lost itunes library? HELP!

The first thing I'd suggest is to get a good antispyware checker and give it a go at your system. Some recent spyware has been reported by other users to shut down iTunes or prevent it from launching. From user reports, Ewido seems to be the best at catching it. You can download a free version of Ewido here.
If that doesn't cure the problem, try deleting the iTunes preference files:
C:\Documents and Settings\<username>\Application Data\Apple Computer\iTunes\iTunes.pref
and
C:\Documents and Settings\<username>\Local Data\Application Data\Apple Computer\iTunes\iTunes.pref
You might have to turn on "show hidden files" to find them. (Right click "my computer", select open, select Tools menu -> Folder Options. Select View tab, "show hidden files" radio button is in the center scrolling panel.) Delete them or if you want to be able to put them back if it doesn't help, drag them to some other location. This will force iTunes to run the setup assistant the next time you launch iTunes. Note that you'll have to go back and set any preferences you've changed from the default.
If that still doesn't work, try this:
Bugie: Perform a Thorough & Complete Uninstall and Reinstall of iTunes/QuickTime.
Hope this helps.

Itunes won't launch

My iTunes won't launch. Any suggestions or ideas?

Uninstall all iTunes related software (AMDS, Bonjour, etc.) then reinstall itunes. Directions below
http://support.apple.com/kb/HT1925 for xp
http://support.apple.com/kb/HT1923 for vista or 7

Itunes won't launch - requires Quicktime 7.5.5 but software update says software is current

itunes won't launch - requires Quicktime 7.5.5 but software update says software is current

Are you using Leopard?
If so, let's try installing a QuickTime 7.7 for Leopard using a .dmg installer downloaded from the Apple website:
http://support.apple.com/kb/DL761
If you install that does that clear up the iTunes trouble?

ITunes won't launch on my MacBook Pro. The icon just bounces. I restarted my computer and it still won't open. Any suggestions?

iTunes won't launch on my MacBook Pro. The icon just bounces. I restarted my computer and it still won't open. Any suggestions?

Try redownloading it from:
http://www.apple.com/itunes/download
If you need further assistance on this thread, tell us the OS X version you are running on your MacBook Pro, and the iTunes version number.

ITunes won't launch after upgrade

I just downloaded the new iTunes upgrade onto my Macbook, and now iTunes won't launch. It just bounces once and then does nothing. I've gone through the uninstall and reinstall process, but still no dice. Any suggestions would be greatly appreciated. (Also, since I uninstalled it, did I lose everything I'd previously downloaded to iTunes?!)
**I just realized I've accidentally posted this under the Windows discussion. Sorry.
Message was edited by: snwp2

Sorted! Panic over. I ran the download again and everythin seems OK.

Itunes won't launch after using norton utilities

Hi,
I used Norton disk doctor and now itunes won't launch. How do I fix this?
Many thanks!

Get rid of Norton's, it's far more trouble than it's worth. This is exactly the kind of thing that happens when you run Disk Doctor or the other parts of the suite, and is why they got out of the Utilities market for the Mac.
1. Try repair Permissions with Disk Utility
2. Try Trash the com.apple.iTunes.plist file from the home / library / preferences folder
3. Try Re-install iTunes. Move the app from the Applications Folder to the Trash, then go to HD / Library / Receipts and trash any pkg file there with iTunes in the name.
Regards
TD

Acrobat pro won't launch even after trying deactivate

Having problems with CS6 running on 10.8.5
Acrobat Pro won't launch even after trying the"deactivate" solution
Also, indesign have has a few glitches...can only save file once...no resave or save as
Please help, I need all aspects of CS6 for my work
Thanks

Hi Jtiger74,
Please update all of your CS6 applications via the Adobe Application Manager. The updates contain a patch to prevent this issue from happening again.
Refer the KB : CS6 applications in Creative Cloud unexpectedly revert to trial mode
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My iTunes won't launch. It will give and error code 13014. How can I fix this?

My iTunes won't launch. It will give and error code 13014. How can I fix this?

Hi tuzas2,
The article below may be able to help you with this issue.
Click on the link below to see more details and screenshots.
I've quoted some applicable information below for you:
iPhone and iPod touch: An unknown error (13014), (13136), or (13213) may occur after updating to iTunes 8.0.1 or later
Solution 1
Make sure you have the latest version of iTunes installed.
Solution 2
Quit and reopen iTunes. If the issue continues, then restart your computer.
Solution 3
Quit iTunes, temporarily disable the anti-virus security software on your computer, then reopen iTunes and try to sync your device. If iTunes successfully syncs your iPhone or iPod touch, consult the anti-virus software vendor.
Solution 4
Turn off Genius in iTunes in the Genius sidebar (choose View > Hide Genius Sidebar).
I hope this information helps ....
Have a great day!
- Judy

HELP. I've tried everything! iTunes won't launch!

So i've installed and re-installed the latest version of iTunes, and still, i can't open it. I used to have iTunes 4, which i was completely happy with, so i never upgraded it. Then i got a 2nd gen iPod Nano, which is only compatible with iTunes 7, so i had no choice but to upgrade. I've tried clicking the iTunes desktop icon a million times, i've tried "Start", "Run", "iTunes", and i've gone into the C: Drive and gone into where iTunes was originally located, to click that, and still, nothing happens. I just see an hourglass for a few seconds, but then it disappears, and nothing happens at all. I've looked all through the technical support pages from Apple, and still, nothing. I've tried everything they've recomended, and none of it has opened iTunes 7 for me. Luckily, i came across my original "Install iTunes" installer for iTunes 4, so i deleted iTunes 7 and reinstalled iTunes 4, to see if i could open that. I had no trouble with opening iTunes 4, so i thought i could reinstall 7 and see if it worked. So, i deleted iTunes 4, and tried to reinstall iTunes 7 again. It still won't launch. I have all of my music backed up, so i'm not worried about losing any of the files or anything like that. I just want to know how to get iTunes to launch.
PLEASE HELP
Windows XP Pro

'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* You can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
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Please report back soon.

ITunes won't launch on PC -- trying to deauthorize

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