Start by navigating to the install page.
If you're a new user, enter your credentials and click Get Started. If you're an existing user, select the link below that.
Then, choose your browser/platform and follow the installation prompts.
How do I uninstall Cirrus Insight for Office 365?
Learn how to quickly uninstall Cirrus Insight from your Office 365 apps.
How do I install Cirrus Insight for Outlook?
Learn how to easily install Cirrus Insight for Outlook.
How do I reinstall the latest version of Cirrus Insight for Outlook?
Learn how to reinstall or manually update Cirrus Insight for Outlook to the latest version.
How do I authorize my Office 365 account when Calendar Sync encounters a problem?
If you received an email with the subject "Cirrus Insight Calendar Sync Problem," that means Calendar Sync wasn't able to access your calendar and you'll need to grant authorization.
Does Cirrus Insight work with TLS 1.1 and higher?
Cirrus Insight can accommodate the highest level of TLS that the host supports.