
Upgrades involve costs for hardware (SQL servers must also be upgraded), software, and administration. It will take time and planning to follow the entire path from SharePoint 2010 to SharePoint Server 2016.
HOW TO UPGRADE OFFICE 2010 TO 365 SERIAL
To reactivate your Office applications, reconnect to the internet. Serial upgrade path: SharePoint Server 2010 > SharePoint Server 2013 > SharePoint Server 2016. If you don’t connect to the internet at least every 31 days, your applications will go into reduced functionality mode, which means that you can view or print your documents but cannot edit the documents or create new ones. You should also connect to the internet regularly to keep your version of Office up to date and benefit from automatic upgrades. C:\Users\username\AppData\Local\Microsoft\ Outlook \RoamCache. Copy your NK2 file or stream autocomplete file, this might delete it self. You might need to add all the accounts in again.

HOW TO UPGRADE OFFICE 2010 TO 365 INSTALL
Internet access is also required to access documents stored on OneDrive, unless you install the OneDrive desktop app. Have all of your accounts for email and passwords ready.

For Microsoft 365 plans, internet access is also needed to manage your subscription account, for example to install Office on other PCs or to change billing options. However, internet access is required to install and activate all the latest releases of Office suites and all Microsoft 365 subscription plans. You'll need to open that in the new Outlook instance for your. Use the resources in this article to get started on your upgrade. For more information, see Upgrade from Office 2010 servers and clients.

SharePoint 2010 and Project Server 2010 will reach their end of support on April 13, 2021. If you were using IMAP, there should be a PST containing your non-mail folders. For Office 2010 products and services: Office 2010 and Exchange 2010 reached their end of support on October 13, 2020. You'll have all the data you had in Outlook 2010. 1 With Microsoft 365 you get the full, installed Office experience on PCs, Macs, tablets (including iPad and Android tablet) and phones. You don’t need to be connected to the internet to use Office applications, such as Word, Excel, and PowerPoint, because the applications are fully installed on your computer. If you had a POP account, you can open the PST in the new Outlook instance and make it your default data file and the delivery location for the account. Microsoft 365 plans include premium versions of these applications plus other services that are enabled over the Internet, including online storage with OneDrive and Skype minutes for home use.
