Error code 0x8007007e is a problem with Microsoft Office Outlook 2016. It inhibits the user from sending or receiving any emails, something that can be quite disruptive and troubling. Most of the users who have experienced this problem have been faced with it after upgrading from Outlook 2013 (or any of Outlook 2016’s other predecessors) to Outlook 2016. Since many people are continuously upgrading to the latest iteration of Outlook, this error code is as pressing a matter as it could possibly be.
The following are the two most effective known methods that can be used to fix error code 0x8007007e.
Run SFC Scan to Repair System Files
Click Start and type cmd
Right Click cmd and choose Run As Administrator.
In the black command prompt window, type
And Press Enter. Wait for the system to finish scanning, once done. Re-open Outlook and test. If this doesn’t resolves the issue, try the solution below.
Run Outlook 2016 as an administrator
Running Outlook 2016 as an administrator is the best fix available for the 0x8007007e error code. Running Outlook 2016 as an administrator seems to get the job done for almost every person suffering from the 0x8007007e error, allowing them to regain their ability to send and/or receive Emails via Office 2016. However, it should be noted that some of the users who tried this method out found that some of the other features offered by Outlook, although not major features, were somehow affected by the program being run with administrative privileges.
Right click on Outlook 2016.
Click on Run as administrator.
You should be able to go about your business as you usually would when running Outlook 2016 with administrative privileges.
If this resolves the issue, then it would be best to set Outlook to always run as administrator. You can do this by going to the properties, right click on the Outlook app and choose Properties or Open File Location, Once you see the file, and you are in properties, go to the compatibility tab and put a check “Run this program as an administrator”. Click OK and Test.