Error installing iTunes + Quicktime 7.4.1

I'm trying to update to version 7.4.1 for a new iPod Shuffle but halfway through the installation I get this error "iTunes + Quicktime has an invalid signature. It will not be install". Please help.

I had similar issues when upgrading to 7.4.1 within iTunes. So I tried it within Quicktime and it worked fine. Maybe that route can work for you? Cheers.

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Fix for VBScript Error When Installing iTunes/Quicktime on Vista

With GREAT THANKS to http://www.keathmilligan.net. I was able to fix this problem by performing the following steps:
The iTunes/QuickTime installer will fail with a "VBScript not installed" error on some installations of Vista. I'm not sure exactly what leads to this situation as it does not seem to affect all Vista users, but there is a relatively simple fix:
Click Start, All Programs, Accessories then RIGHT click on Command Prompt and select "Run as Administrator"
change directory to your windows\system32 directory
enter the following command:
regsvr32 vbscript.dll
This will re-register VBScript and allow the iTunes installer to run.
After almost pulling my hair out for a month, this worked like a charm and I was able to install iTunes/quicktime with the latest version and get to hear my music again after a month of trying everything. THANKS KEATH
Dell OptiPlex GX520 Windows Vista VISTA BUSINESS

Issue was very happily resolved with great thanks to Keath http://www.keathmilligan.net/node/139

Error 0x800736FD when installing iTunes + QuickTime

Well, I finally caved. I bought my first digital portable media player. The people on the street were throwing things at me, and my doctor said he might have to operate my shoulder. The boombox had to go!
So, I'm trying to install iTunes. My Dell machine came with an "Apple Software Update" program installed. It's been bugging me to install iTunes since I got it, so this time I clicked OK and let do its thing.
The automatic updater "Apple Software Update" is trying to install "iTunes + QuickTime" version 7.4.3. It goes through the download phase OK, then starts the installation. After about 10 minutes (wherein the installation has not progressed in the last 9 minutes), an error message appears in a separate window:
iTunes + QuickTime
(X) An error has occured during the installation of Microsoft.VC80.CRT,publicKeyToken="1fc...",type="win32",version="8.0.50727.762" ,processorArchitecture="x86". Refer to Help for more information. HRESULT: 0x800736FD.
Has anyone seen this before or know how I can get around it? Any help will be greatly appreciated.
Stephen

Have you tried downloading iTunes yourself and installing it manually?
You can download the iTunes installer from here:
http://www.apple.com/itunes/download/

Could not open key error installing itunes

I get this requester saying that a registry key can not be accessed when trying to install itunes/quicktime. Just got a nano and am trying to load the app to load music.
See this link foe the requester...
http://www.edward-ramos.net/images/itunesError.jpg
I have tried, several times, to uninstall useing the procedure outlined in the support section but no luck. I am installing with Admin account and also tried with a different named account with admin access.
pc Windows XP Pro

even though you're not getting a 1406 or 1402 error message number with this, try the techniques from this page:
Error 1406 or 1402 appears when you install iTunes or QuickTime for Windows

Cannot install iTunes\Quicktime, no solutions have worked HELP!!!

I have been trying to install iTunes\Quicktime for several weeks now. I have tried EVERYTHING list in these threads:
Uninstalled.
Deleted all related files and regkeys.
Ran Windows Installer Cleanup utility.
Re-install Windows Installer 3.1
Re-install InstallShield v 11.
Re-register dlls
Remove all temp files from all directories listed in these threads.
Still receive the same error:
Error 1714.The older version of QuickTime cannot be removed. Contact your technical support group. System Error 1610.
This is the same for QT v 7.0, 7.1, even the old 6.x versions.
Please, HELP!

Have you tried turning off any antivirus and antispyware utilities on your system prior to performing the cleanup and attempting reinstallation? There have been scattered reports that some security utilities block proper cleanup of the Windows system registry.

Steve Jobs obviously was "the man" because every update or install now gives me problems... i can no longer download anything to my iphone.. giving me errors of "cannot install at this time" and i get an error installing itunes on my other laptop... wth?!

Steve Jobs obviously was "the man" because every update or install now gives me problems... i can no longer download anything to my iphone.. giving me errors of "cannot install at this time" and i get an error installing itunes on my other laptop... wth is going on!??!
ok so the download problem with my iphone.. what could be the cause of that? ive restarted and deleted the "undownloaded app" over 10 times already. and restarted the iphone 10 times... next thing i know i cant install itunes on my laptop.... geez man..
obviously there is a fix which someone will help... but why should i have to go through all that crap to install a so called uncomplicated software... when you think about it this really shouldnt even be an issue.
normally if the thing dosent work. normally with most programs you just uninstall the uncompleted software and just reinstall and everything is usually good to go.. help!

ive never had any problems with ap[ple products in the past... this is a first and a stupid problem if you ask me

Problem installing iTunes + QuickTime

So, I uninstalled QuickTime (last week) and then installed QuickTime Alternative, because it's smaller in size and I don't use QuickTime at all. That's probably what's caused my problem, and here it is.
So today I double clicked on the iTunes shortcut and I got a pop-up saying 'iTunes needs QuickTime in order to run. Please uninstall & install iTunes + QuickTime'-or something like that. So I uninstalled iTunes but now I can't install it. It freezes during the installation at 'Copying New Files'. What do I do?
Message was edited by: wilson173

hi RockDad!
let's try enlisting some additional technical help with this one.
let's try getting a installer log to someone who can interpret installer logs.
Start menu -> Run... In the text field of the dialog that comes up, type in "cmd" and hit return.
In the command prompt dialog that comes up, find the iTunes installer on your desktop and drag it to this window. Then on the same line type in a space and then the following:
/Verbose"c:\log.txt" /V"ENABLE_QTLOGGING=TRUE"
There is no space between the e in Verbose and the double quote ("). There is no space between the V"Enable...
Hit return.
The installer will create two log files:
C:\log.txt and C:\qt.log
Find those files and send them to this email address Put the URL to this discussion thread into the email, so that the person who gets it has some context. Let them know the version of itunes you’re trying to install, too … in general, give as much info as you can.
love, b

HT1926 I have an error installing itunes : the installer has insufficient privilidges to modify this file C:/ program files\itunes \ipod updater\ext.dlll? what to do?

I have an error installing itunes : the installer has insufficient privilidges to modify this file C:\program files\itunes \ipod updater\ext.dlll? what to do?

iPhone - not enough access privileges: Apple Support Communities
ITunes Access Privileges Error?!?!: Apple Support Communities
The installer has insufficient ...: Apple Support Communities

Issues installing itunes + quicktime error code 2203

Every time I try install version 7 itunes + quicktime I get an error code 2203. HELP!!
Windows XP Pro service pack 2

okay. let's try getting an itunes 7 installer log to the Apple engineers for a look.
1. Open a command prompt window. (Start menu -> Run. Type in "cmd". Hit return.)
2. Drag and drop iTunesSetup.exe onto the window so that the full pathname of the file is at the command line prompt.
3. Type in a space, then the following line:
/l*v C:\log.txt
4. Hit return.
5. The installer will create a log file:
C:\log.txt
Find that file and send it as an attachment to this email address.
in the email to Roy, be sure to include the following information:
- A link to the thread on Apple Discussions where the issue is being discussed
- The username you are using in the thread
- The version of iTunes you are using or trying to use
- the version of Windows you are using (mention service packs)
- A concise description of the issue you are seeing
- The exact text of the error message you are seeing

Problem installing itunes, quicktime or anything else. Stuck at "Publishing Product Information" then error. Please help!

Dear apple community, I'm having trouble installing ANY apple programs, i.e. Quicktime, iTunes, Application support etc. The installer gets stuck at "Publishing Product information" and eventually gives me an error information. Please help! I desparately need to install quicktime atleast! I tried installing an old version but it says "install apple application support" or something along that matter. When I unrar'd itunes installer and tried installing just the application support, but that too got stuck at "Publishing Product information". This is making life very hard for me. Any help would be awesome!!

These ones are typically caused by underlying problems on the PC that also often cause Windows Updates to fail to install. If we can fix the Windows Update trouble, we can usually get the iTunes trouble cleaned up en passant.
Go into your Windows update and try to check for new updates. If updates install, stock up on the ones you're behind on, restarting the PC if requested to do so. After the restart, try installing iTunes again. Does it go through this time for you?
If windows updates fail to install, go into your Update History and doubleclick the failures. What alphanumeric codes appear for you? Are they also 800736FD, or some other number? (If they're another number, what number are you getting?)

Installing iTunes/quicktime: Error 2783

I bought my iPod touch 4th gen last night & have stayed up all night trying to download iTunes/quicktime so that I can sync & set up. Everytime I download iTunes I get Error 2783 and it says 'The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2783.I have tried all the resolutions in the troubleshooting sections but nothing is working! I have tried uninstalling everything to do with Apple on my laptop to no avail. Please help!

Yor Vista is updated to the latest version?
You are administrator while trying to install iTunes?
You checked Apples hints under http://support.apple.com/kb/HT1926?viewlocale=en_EN ?

Error 1628 @ itunes / quicktime setup / install

he u guys
i've had the same problem!
after a ** whole morning research in the internet,
and trying everything (except the thing which would bring it to work) from deleting entries in the registry to update windows installer and so on...
after that i cleaned my pc from the lot of crap which was installed (strange players, goodie-progs... just everything you don't need) i tried it once more and..
I T W O R K S !!!!!!
if you have the firefox browser installed, try first uninstall the firefox only before removing "all" of your software (no i don't think that firefox is crap, and i will install it right after the setup of quicktime is complete, but it might cause some errors..)
so try it, and tell me if it works!
greetz from switzerland and excuse my bad english
amrun

do a search on your hdd for quicktime and itunes files and delete them all manualy - also find out what files are installed that won't show on a "itunes" or "quicktime" search and delete them too
then open Regedit and search for iTunes and Quicktime and delete what you find.
restart and install iTunes again...
after a wierd error i tryed reinstalling itunes and got the same error. i did what i just said and all worked again

BIOS error on reboot after installing iTunes/Quicktime

Installed QT first, to correct first error I got when installing iTunes. Have QT on C drive, installed iTunes on E drive - since it takes up gobs of space and I only have a 10GB for my OS, antivirus, etc. I run all apps from my E drive. No probs until this happened. I get an error that says that bios is not installed and to press [g] to continue. I do this and it boots normally into windows, BUT my E drive has now gone missing. I know I'm returning this God-forsaken device, but I have to get my PC back to normal. Please help!

This is where you should really be posting this:
http://discussions.apple.com/forum.jspa?forumID=792
Why not try installing iTunes and QT both on your C: drive and see if the problem stops? At least it gives you a starting point. You can keep your iTunes library on E:

How do I install iTunes+QuickTime on Vista

When I try to install the latest version of iTunes+Quicktime, everything works until the very end when QuickTime is installing, the I get an error box saying "This Installer Cannot Upgrade QuickTime 7 For Windows Public Preview, Please Uninstall First". I uninstalled existing QuickTime, but the dialog box pops up every time. I don't see any references to QuickTime in Program Files or Add/Remove Programs in Control Panel. I assume there is a reference somewhere in the Registry.
Any ideas?
Uncle Dannie

You should probalby post your question in the iTunes discussions:
http://discussions.apple.com/category.jspa?categoryID=149

Error installing itunes 9 with windows xp

Installed itunes 9 today, almost everything seems to work fine, i can access itunes and my music ... but when i open itunes i get this error message:
The registry settings used by the itunes drivers for importing and burning CDs and DVDs are missing. This can happen as a result of installing other CD burning software. Please reinstall itunes.
I did not install any CD burning software, and I have already uninstalled Itunes and everything related to itunes (quicktime, etc.) and reinstalled, then I get the same message. My ipod touch is not being recognized by windows or by itunes, and when i plug it into the usb drive no image shows up on it, the screen is just black.
I was about to purchase a second ipod touch today, but now i have to put it off since i wont be able to set it up if itunes wont recognize it. Please help!!!

This article should be your starting point:
XP
http://support.apple.com/kb/TS2372?viewlocale=en_US
Vista
http://support.apple.com/kb/HT2615?viewlocale=en_US

Error installing iTunes + Quicktime 7.4.1

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