«iTunes» has an invalid signature. It will not be installed.» HELP!

If you have difficulty downloading the current iTunes installer file try; unticking the "Keep me up to date..." box, clearing your browser's cache, changing pop-up blocker settings, right-clicking or ctrl-clicking the download button, using an alternate browser, using the direct links from here, or download the installer on another computer and transfer to yours with a USB drive. Another user also mentioned pausing and resuming the download to help it complete as a possible workaround for network timeout issues. It may also help to temporarily disable AV software.

Once you've downloaded the setup file right-click on it and use the Run as administrator option.

See Troubleshooting issues with iTunes for Windows updates if you have any further trouble with the installation.

tt2

You can find the download for the latest version of iTunes at Download iTunes 12.6.2

Also for other software downloads, you can find them at Apple - Support - Downloads

For this particular issue follow If you can't install or update iTunes for Windows - Apple Support

First steps to follow:

1. Make sure you operating as the Administrator

2. Install any Microsoft Windows updates.

3. When downloading the latest supported iTunes version for you Windows OS select "Save" instead of "Run"

4. Right click on iTunesSetup or iTunes6464Setup (the installer you downloaded in step 3)

(If you have Windows Vista or later: Choose "Run as administrator." If you have Windows XP: Choose Open.)

- If you've previously installed iTunes, the installer will prompt you to repair the software.

- After the repair is complete, restart your computer and try launching iTunes.

5. If iTunes fails to install or repair, it might be necessary to remove components left from a previous installation of iTunes and then reinstall.

When uninstalling iTunes, uninstall these files in exact order.

- iTunes

- Apple Software Update

- Apple Mobile Device Support

- Bonjour

- Apple Application Support 32-bit

- Apple Application Support 64-bit

(Deleting iTunes won’t delete your music.)

6. Disable any conflicting software, Virus protection, Anti Malware etc

7. Restart Computer

8. Attempt install again

If you see an "Windows installer package" alert message, follow If you see a 'Windows Installer package' error message when you try to reinstall or remove Apple software - Apple Suppor… to try to repair the software through the Windows Control Panel.

If the steps in these articles don't help you fix the issue, you might be able to find a solution through a search of the Microsoft support website

Download a fresh copy and try again. See the iTunes installers section of Troubleshooting issues with iTunes for Windows updates for direct download links. Review the rest of the article if you have problems with the update.

tt2

Encountered the same issue, this is what i did and it worked.

1) in I.E. go to Tools > Internet Options > Advanced > scroll down to Security and tick “Allow software to run or install even if signature is invalid > Apply > OK

(not sure this step is necessary, but i did it anyway)

2) open iTunes > Account > Sign In (put in your apple id and password)

3) in iTunes > Help > Check for Updates (then just follow the normal procedures)

it works for me, i hope it helps you

Encountered the same issue, this is what i did and it worked.

1) in I.E. go to Tools > Internet Options > Advanced > scroll down to Security and tick “Allow software to run or install even if signature is invalid > Apply > OK

(not sure this step is necessary, but i did it anyway)

2) open iTunes > Account > Sign In (put in your apple id and password)

3) in iTunes > Help > Check for Updates (then just follow the normal procedures)

it works for me, i hope it helps you

Go directly to Apple link to download

http://support.apple.com/kb/DL1426

Select "Save" instead of "Run". Once downloaded, right click the iTunesSetup.exe or iTunesSetup64.exe and select 'Run as Administrator' to install.

Perfect, except I couldn't choose the 'Run as Administrator', so I just chose the default, and it worked fine.

Thank you.

You're very welcome. 🙂

thanx !!

I have this same problem now and the link provided earlier is now not an active page. Would someone please direct me to solution? Thank you.

I am not getting the message they are getting, I try to do an update and it just goes away.... If I were to re-installed do I need to un-install 10.6.1.7 first or can I install over the top of my existing version?

Thanks,

John

Hi fimeck,

The link you provided just goes to an Apple page that says "We're sorry. We can't find the article you are looking for.

I would think the link doesn't work now as we are on version 10.7.

If you go to:

http://support.apple.com/downloads

the latest update for itunes is in the left hand column. If you follow the rest of the instructions from wiclee/fimeck it should work.

"Select "Save" instead of "Run". Once downloaded, right click the iTunesSetup.exe or iTunesSetup64.exe and select 'Run as Administrator' to install." (or use default)