Q: update 12.1.2 won't download and won't update. invalid signature
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Apr 14, 2015 1:39 PMby jason269,Hello, clarkedm.
Thank you for visiting Apple Support Communities.
I understand that you are unable to download and install iTunes on your computer. Here are some troubleshooting steps that I would recommend going through for this issue.
If you can't install or update iTunes for Windows
Cheers,
Jason H.
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Apr 14, 2015 1:53 PMby turingtest2,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) 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
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Jul 20, 2015 5:55 AMby turingtest2,mittgenstein wrote:
same here
But a different operating system. This is a direct link for iTunes 12.2.1 for OS X: iTunes 12.2.1 for OS X.
tt2
