#Cannot open shared contacts after upgrading to outlook 2016 install
It'll take a few minutes (or more - possibly about as long as it took to install Office) to update the installation and you may need to reboot your computer. "C:\Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=.2068 2068 (it's all on one line - make sure you use the leading double quote "): In Windows 10 or 8.1, right click on the Start button and choose Command Prompt (Admin) then type or paste (right click in the command prompt screen) this command line to revert to the Februbuild. To revert to an older build of Office 2016, first, go to File, Office Account, Update Options and Disable Updates then create an appointment on your calendar to re-enable updates in early to mid April. (if you have full rights of this shared mailbox) Note: In. Click Home and click Open Calendar and select From Address Book from the drop down menu.
![cannot open shared contacts after upgrading to outlook 2016 cannot open shared contacts after upgrading to outlook 2016](https://www.officetooltips.com/images/tips/270_365/1.png)
After configuration, a shared mailbox will automatically visible in the left pane of Outlook. Once someone has shared their Outlook 2016 calendar with you. Enter the name or address of shared mailbox and click OK. Now, go to the Advanced tab, and click on the Add button. Switching to IMAP will solve this problem, but because there may be other issues, I recommend reverting to an older version and waiting for the next update. From Change Account window, click on More Settings button. The usual fix when this happens is to not leave mail in the Inbox on the server, however, this won’t help someone who wants to leave mail on the server. POP3 mail left on the server keeps downloading, over and over. there is second issue with this update and POP3 accounts. Untick the option to delete it after a specific number of days. The leave on server setting is on the Advanced tab. To do this, go to File, Account Settings, double click on the POP account then click More Settings.
![cannot open shared contacts after upgrading to outlook 2016 cannot open shared contacts after upgrading to outlook 2016](https://cdn.windowsreport.com/wp-content/uploads/2019/09/The-set-of-folders-cannot-be-opened.jpg)
This will leave all email on the server for a few weeks, until the problem is fixed. Until this problem is fixed, there is a simple workaround: users can uncheck the option to delete mail after a period of days, while leaving the "leave on server' setting checked.