Sign up for Office 365
Learn more about Office 365
For the best experience using Office 365, we recommend you always use the latest browsers, Office clients, and apps. We also recommend you install software updates when they become available.
Office 365 is designed to work with the following software:
While Microsoft does not recommend that you connect to Office 365 with older browsers and Office clients, we will provided limited support so long as that software is supported by its manufacturer. Specifically, if you continue to use older browsers and clients:
Office 365 does not support any software used with the service that is not supported by its manufacturer.
What is Microsoft's Support Lifecycle Policy?
You can learn more about the Office support lifecycle at the Microsoft Support Lifecycle Web site, and read about specific Office versions in the Support Lifecycle Product Database.
What does it mean that Office 365 is designed to work with certain client software?
To deliver the best, richest user experiences, Office 365 takes advantage of the latest features available in modern client software. Our software engineers will invest the majority of their time developing for and testing with these clients.
Is it possible to connect to the Office 365 service with client software that is not supported by its manufacturer?
Office 365 will not deliberately block users from connecting to the service with software that is not supported by its manufacturer, unless doing so would present a security risk to the service itself.
Will Office 365 Customer Support and Service (CSS) assist me if I have questions about older browsers and Office clients?
CSS will provide assistance with older clients, offering workarounds or how-to information when possible. In many cases, however, the only solution CSS will be able to offer for a problem with an older browser or client will be to upgrade it.
Will new Office 365 features and experiences work older Office clients?
While most new Office 365 experiences are designed for the latest version of Office, some new features may work with older versions of Office that are in mainstream support.
Will an Office client connect to the service for the full extended support period?
Office clients in extended support should continue to connect to the Office 365 service. We will provide notice consistent with our Online Services Support Lifecycle Policy if there is a substantial degradation of the user experience with an Office client in extended support, or if that Office client will no longer connect to the Office 365 service.
What does this mean for Office 2007?
Office 365 is not designed to work with Office 2007, because Office 2007 left mainstream support on 12 October 2012. Office 365 will not offer code fixes to resolve problems using the service with Office 2007: You should expect the quality of the user experience to diminish over time, and that many new Office 365 experiences will not work at all. We recommend that you upgrade as soon as possible to Office 365 Pro Plus or Office Professional Plus 2013 for the best experience with Office 365; or to Office Professional Plus 2010, which is in mainstream support.
What service pack should I use?
Microsoft's Service Pack Support Lifecycle policy requires that you deploy Office Service Packs within twelve months of release. Office 365 requires that you be in compliance with this policy.
Do I need to accept automatic public updates from Microsoft?
Automatic public updates contain critical security fixes for Microsoft products. Office 365 strongly recommends customers accept automatic updates from Microsoft both to secure their environments and to have the best experience with Office 365.
Office 365 Pro Plus and Lync Basic users may only defer deploying updates for twelve months from date of release.
Is the lifecycle for Office subscription software different from the policy for Office and Lync client software purchased separately?
Yes. Office subscription software licenses (Office 365 ProPlus, Office Professional Plus 2010 Subscription, and the Lync client provided with your Office 365 service) entitle you to use the current version of the software, and do not include downgrade rights to older versions of the software. Microsoft may, however, provide an upgrade period during which your subscription entitles you to use both a current and previous version of the software.
When a new version of Internet Explorer is released, what will the user experience be like with a version two steps older?
We recommend that you upgrade to the latest version of Internet Explorer after it is released. Office 365 may continue to work with versions of Internet Explorer other than the current and immediately previous versions for some time after the release of a new version of Internet Explorer, but Office 365 can’t provide any guarantees.
What does this mean for Internet Explorer 9?
Office 365 is not designed to work with Internet Explorer 9. Office 365 will not offer code fixes to resolve problems using the service with Internet Explorer 9: You should expect the quality of the user experience to diminish over time, and that many new Office 365 experiences will not work at all. We recommend you upgrade to Internet Explorer 11 as soon as possible.
What does this mean for Internet Explorer 8?
Office 365 is not designed to work with Internet Explorer 8, and the user experience sending and receiving email with Outlook Web Access and Internet Explorer 8 may be compromised, especially when used on Windows XP and/or with low memory machines. Office 365 will not offer code fixes to resolve problems using the service with Internet Explorer 8, and new Office 365 experiences will likely not work at all. We recommend you upgrade to Internet Explorer 11 as soon as possible.
You should also expect the quality of the user experience with Internet Explorer 8 to diminish further in the near future. For example, after April 8, 2014, Internet Explorer 8 will only display Outlook Web App Light.
Where can I learn more about Office 365 and Internet Explorer?
Please see the Internet Explorer and Office 365 FAQ on the Office 365 Community Forums.
Why doesn't Microsoft allow more than one version of Chrome?
Google does not maintain older versions of Chrome. Also, Google Chrome is designed to stream updates your computers, and is updated every six weeks. Many common problems with this browser are resolved in the next update.
What does this mean for Windows XP?
Windows XP leaves extended support on 8 April 2014. While Office 365 will not block users from connecting to the service from Windows XP computers after this date, you should expect the user experience to diminish over time.
Users with low-memory computers running Windows XP and Internet Explorer 8 will have a compromised browser experience with Office 365.
Does Microsoft have an operating system requirement?
Office 365 does not have an operating system requirement, except that the operating system you use must be supported by its manufacturer. There may, however, be advanced Office 365 configuration options, features, scenarios, and/or tools that have explicit dependencies on an operating system, or behave differently on different operating systems.
How can I tell which operating systems are supported?
For information about Windows operating system support, see the Support Lifecycle Product Database. For information about other operating systems, please contact the manufacturer.
17 out of 22 people found this post helpful.