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My Calendar is not working in Internet Explorer

Last Updated: Jul 16, 2013 12:24PM EDT
If you are using Windows 7, Vista 64 bit or Window 8 32 or 64 bit and Internet Explorer 9,10 you will need to remove a security update that is causing the date calendar not to work on the visits, reports and classic appointment book.

To Remove this update please follow these steps:
Removal information: To uninstall an update installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates and select from the list of updates. The update number is (2846071) and should be dated 7/10/2013

You must also not allow this update to install again. To do this go start > Control Panel > System and Security > Windows Update.

Click Important updates > right click the update

Cumulative Security Update for Internet Explorer (2846071)

and select Hide Update if you do not see the update, click check for update on the right to refresh the list. 
See the link below for how to hide an update

Please see the Microsoft Article here for detail information about this security update:

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