I did the iTunes update yesterday and now I am getting this message when I try to open iTunes - "This copy of iTunes is corrupted or is not installed correctly. Please re-install iTunes. (-42037) Can anybody help me out resolving this?

I did the iTunes update yesterday and now I am getting this message when I try to open iTunes - “This copy of iTunes is corrupted or is not installed correctly. Please re-install iTunes. (-42037) Can anybody help me out resolving this?

Download iTunes using the tab at the top of this page, re-install. Back up your computer first.

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restart your system
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Charles

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~~~~~
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Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
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iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall press on)
Bonjour
Apple Application Support
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HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2

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I'm getting this message when I try to open iTunes: This copy of iTunes is corrupted or is not installed correctly. Please reinstall iTunes. (-42037) What do I do?

I'm getting this message when I try to open iTunes: This copy of iTunes is corrupted or is not installed correctly. Please reinstall iTunes. (-42037) What do I do?

Do a back up then try reinstalling.
You should always back up before do an update, upgrade, anything with the system in case something goes wrong. That way you still have a current copy of your data.
Try starting in safe mode, then running the update. This will disable most 3rd party sofwarelike anti virus and other things prople put on their machines that can cause problems.
Safe mode:
Power off, power on holding the shift key, continue to hold until you see the progress BAR then re;ase and allow to finish booting. Note this will take longer than a regular boot. Login and try running software update or use the link here to download. Use an ethernet connection if possible as it is much less prone to corruption than wireless.
http://support.apple.com/kb/DL1614
After download and install logout and restart normally.

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Hey jeight26,
When you uninstalled and reinstalled iTunes, did you use this article?
iTunes 11.1.4 for Windows: Unable to install or open
http://support.apple.com/kb/TS5376
If you haven't already done these steps, this section contains information that might help your situation, as the order and manner which you uninstall has an effect on the outcome:
Use the Control Panel to uninstall iTunes and related software components in the following order and then restart your computer:
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Apple Software Update
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Bonjour
Apple Application Support (iTunes 9 or later)
Important: Uninstalling these components in a different order, or only uninstalling some of these components may have unintended affects.
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Welcome to Apple Support Communities!
Sincerely,
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I did the iTunes update yesterday and now I am getting this message when I try to open iTunes - "This copy of iTunes is corrupted or is not installed correctly. Please re-install iTunes. (-42037) Can anybody help me out resolving this?

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