I'm downloading iTunes onto a 64-bit Windows 7 platform. I am getting the message 'The Windows Installer Service could not be accessed'. What causes this?

You can go through the Microsoft Support kb as there can be some issue with the Windows Installer Service settings or registry keys. Go through the below Link and check the Resolution tab in it. But be careful when working with system Registries.
http://support.microsoft.com/kb/2642495

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I can't Start, Uninstall or Install new iTunes. I'm getting the same error message: Window Installer Service could not be accessed. No other programs have similar problem. Any suggestion what can be done?

I can't Start, Uninstall of Install new iTunes. I'm getting the same error message: "Window Installer Service could not be accessed". No other programs having similar problem. Any suggestions how to fix it?

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. 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, need to revert to an older version or want to try the iTunes for Windows (64-bit - for older video cards) (not for XP) release as a workaround for installation or performance issues, or compatibility with QuickTime or third party software.
Your library should be unaffected by these steps but there are also links to backup and recovery advice should it be needed.
tt2

I am getting the message "The windows installer Service could not be accessed when trying to install Itunes on my new computer, any help would be appreciated.

I am getting the message "The windows installer Service could not be accessed when trying to install Itunes on my new computer, any help would be appreciated.

Hey there Frank0619,
If you have not been able to install iTunes because the Windows Installer service is not available, I would recommend the troubleshooting in the following troubleshooting to help.
Issues installing iTunes for Windows
These in particular:
Make sure you have an administrator account.
To install iTunes, you'll need to log in to your computer with an administrator password. If you're not sure if you have an administrator account, read Windows 7: How do I log on as an administrator? You could also refer to your computer's help system, contact your IT department, or visit support.microsoft.com for assistance.
Install the latest Microsoft Windows updates.
To download the latest updates, visit the Microsoft Windows Update website. iTunes for Windows requires Windows XP, Windows Vista, Windows 7, or Windows 8 with the latest Service Pack installed. If you can’t install the updates, refer to your computer's help system, contact your IT department, or visit support.microsoft.com for assistance.
Download the latest version of iTunes.
The latest version of iTunes can be downloaded at http://www.apple.com/itunes/download/.
Disable conflicting software.
Some Windows background processes can cause issues for other programs and processes. These conflicts can prevent applications, such as iTunes, from installing. Disable conflicting processes by starting your computer using MSConfig:
Using Msconfig to troubleshoot conflicts in Windows XP
Using Msconfig to troubleshoot conflicts in Windows Vista, Windows 7, and Windows 8
Some security software made by other companies can't be disabled using MSConfig. If you've installed security software and you're having issues installing iTunes or QuickTime for Windows, you might need to disable or uninstall security software to resolve installation issues.
Restart your computer.
Install iTunes.
Thank you for using Apple Support Communities.
All the best,
Sterling

9.2 ITunes Update " Windows Installer Service Could Not Be Accessed" HELP!

I'm running Windows 7 64 bit OS system and I have no problems installing or uninstalling anything on my computer EXCEPT Itunes. I have not been able to install the new update to 9.2 and I need to before I can get the new Iphone software for my new IPhone 4.0 tomorrow.
Please help, this is my work phone and I have gone to every support place possible to fix this.

After much searching I found the following solution...it worked for me. So simple you would think the Tech guy at HP I spent an hour on the phine with would have known it. Good luck!
This is the solution that worked for me:
Go to this registry key:
HKEYLOCALMACHINE\SYSTEM\CurrentControlSet\Services\MSIServer
Look for
WOW64 and it's value.
Is it 0x00000001 (1) ?
This value tells Windows Installer only to deal with 32-bit installers
and to return you an error whenever you try to install something that is
64-bit. To fix it, just set the value to 0. So you will see in your
editor:
WOW64 REG_DWORD 0x00000000 (0)
After changing the value to zero, restart your Windows Installer Service
by using services.msc or reboot.
This simple solution of changing the 1 to a 0 allowed me to finally
install Itunes on Vista 64

I cant Update my Ipod classic with Itunes a message says the windows installer service could not be accessed this can occur when running windows in safe mode or the windows installer is not correctly installed.

I cant update my Ipod classic with Itunes it is related to Windows installer is not done correctly.

Sounds like you need to repair the Windows Installer Service.
See http://blogs.msdn.com/b/astebner/archive/2006/07/20/673408.aspx
tt2

I am trying to install itunes on my computer which is running windows 7, sp1, 64 bit. i get the message 'THIS INSTALLATION PACKAGE COULD NOT BE OPENED.VERIFY THAT THIS PACKAGE EXISTS, ETC'. any ideas how to fix?thanks jake

i am trying to install itunes on my computer which is running windows 7, sp1, 64 bit. i get the message 'THIS INSTALLATION PACKAGE COULD NOT BE OPENED.VERIFY THAT THIS PACKAGE EXISTS, ETC'. any ideas how to fix?
thanks jake

Hello tcampbell1549,
Thank you for using Apple Support Communities.
For more information, take a look at:
Issues installing iTunes or QuickTime for Windows
http://support.apple.com/kb/ht1926
Have a nice day,
Mario

Hi everyone I'm a new iPad user (ipad2) and have tried to download a few apps. I already have a iTunes/app store account but often when I try download a app I get a message that says "your request could not be processed"?

Hi everyone
I'm a new iPad user (ipad2) and have tried to download a few apps. I already have a iTunes/app store account but often when I try download a app I get a message that says "your request could not be processed"?

It could be a problem at the other end, try again tomorrow. Also , try resetting your iPad by holding down the home and sleep/wake button till the Apple logo appears and then let it wake up, maybe that may help.

TS1503 when syncing my ipad I get the message 'iTunes cannot sync apps to the iPad "..." because the apps installed on the ipad could not be determined'; what does this mean?

when syncing my ipad I get the message 'iTunes cannot sync apps to the iPad "..." because the apps installed on the ipad could not be determined'; what does this mean?

I'm pretty sure it's a bug in either iOS 6 or iTunes 10.7. I kept getting it until I quit iTunes and re-ran it again. I then started sync from the iPad itself.

When trying to download apps to my ipad, I get a message saying a secure connection could not be established and to check my date and time settings?

When trying to download apps to my ipad, I get a message saying a secure connection could not be established and to check my date and time settings. Can someone tell me what this means and how to fix the problem?

It's a POP account. I decided to clean up my mailbox today after noticing the computer was real slow after USA Today started sending their daily top stories with new graphics. Also before I noticed the problem with mail deletion - two things happened. 1) I updated security sofware as prompted by Apple and 2) downloaded Mackeeper and went throught some preliminary scans but did not buy their package. Thanks forn nstaying with me.

HT4009 i cant buy in-app purchase! but the message said that "Your purchase could not be completed! please contact itunes support.... how to fix?

i cant buy in-app purchase! but the message said that "Your purchase could not be completed! please contact itunes support.... how to fix?

If you are getting a message to contact iTunes Support then you can do so via this link and ask them why the message is appearing (we are fellow users here on these forums, we won't know why) : http://www.apple.com/support/itunes/contact/ - click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption

While syncing, I got this message: "iTunes cannot sync apps to the iPad "temp's iPad" because the apps installed on the iPad could not be determined" What does this mean and what should I do?

While syncing, I got this message: "iTunes cannot sync apps to the iPad “temp’s iPad” because the apps installed on the iPad could not be determined" What does this mean and what should I do?

Based on an online post, I tried the following and it worked for me:
1. Windows 7: Control panel > Device Manager
2. Right click my PC's name > "scan for hardware changes"
3. Restart iTunes
4. Restart IPad
5. Connect IPad
6. Still I got the same error
7. Restart iTunes
8. Restart IPad
9. Connect IPad
10. It worked and I was able to sync the apps!!
Prior to this I had removed few apps, not sure that was a trigger.
System: IPad 1, IOS 5.x

TS1814 I tried updating my iphone 4 using itunes but i keep getting a message saying iphone software server could not be contacted. What does this mean and how do I fix my iphone which appears to be in recovery mode.

I tried updating my iphone 4 using itunes but i keep getting a message saying iphone software server could not be contacted. What does this mean and how do I fix my iphone which appears to be in recovery mode.

USER-kswest wrote:
BTW I have gone to the "Contact iTunes Support" and do NOT get anywhere. That is why I am here!
You need to contact iTunes support and send an email by following the link I posted.
Simply going there does nothing.

Tried to update iTunes, after downloading I get the message: procedure entry point sqlite3_wal_checkpoint could not be located in dynamic link library SQLite3.dll ??

Tried to update iTunes. After downloading I get this message: Procedure entry point sqlite3_wal_checkpoint could not be located in dynamic link library SQLite3.dll ?? What does that mean?!

Found this several months ago when I updated ITunes. I don't know why they still haven't fixed this, but I had to do this again yesterday 10/13/2011 when I updated.
With Windows Explorer, navigate to your C:\Program Files\Common Files\Apple\Apple Application Support folder.
Copy the SQLite3.dll that you should find there, navigate to the nearby Mobile Device Support folder, and Paste it in there also.
Reboot and see if all is well
In case that your OS is Windows 7 (64 bit)
1. Open windows explorer, go to location C:\Program Files (x86)\Common Files\Apple\Apple Application Support
2. Copy file "SQLite3.dll"
3. Open new windows explorer, to to location C:\Program Files (x86)\Common Files\Apple\Mobile Device Support
4. Paste file "SQLite3.dll" to the location.
5. Reboot your computer, it should not display that message, it should be clear.

Just downloaded iTunes to new dell laptop, tried syncing my iPhone get an error message: "this iPhone cannot be used because the Apple Mobile Device service is not started". What does this mean? I have had this phone for over a year..

Just downloaded iTunes to new dell laptop, tried syncing my iPhone get an error message: "this iPhone cannot be used because the Apple Mobile Device service is not started". What is the issue, had this phone over a year??

I had this problem before. I like to disable extra services to speed up my computer and I disabled the Apple Mobile Device service and had to re-enable this.
You can do that by going Control Panel>Administrative Tools>Services. Once you have gone to the services window, look for Apple Mobile Device and right-click. Select "Properties". There should be some information about the service as well as the label "Startup Type" with a drop-down menu beside it. If it says "disabled", that is your problem; Change the selection to anything except disabled (Automatic is easier and ensures that you can sync as soon as itunes opens).
If this doesn't work, I would look into your anti-virus' settings. Good Luck!

I plugged my iPod touch (4th generation) into my computer and when iTunes popped up, there was a notice that read "The iPod cannot be used because the Apple Mobile Device service is not started". What does this mean and what do I do?

I plugged my 4th generation iPod touch into my computer and when iTunes popped up, there was a notice that read, "The iPod cannot be used because the Apple Mobile Device is not started". What does this mean and what do I do?

Type "Apple Mobile Device Service" into the search bar at the top of the page by Support and read the help article.

I'm downloading iTunes onto a 64-bit Windows 7 platform. I am getting the message 'The Windows Installer Service could not be accessed'. What causes this?

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