Use these instructions to disable the SSL checking from ESET, this will allow your web browser to certify authenticity and cause less or no false positives.
As Microsoft partners we strive to ensure that our customers have the best tools and training available. Microsoft has created a series of videos and training material for Office 365 products and services. https://support.office.com/office-training-center
Open Source software is created and maintained by a community of people looking to improve on the designs currently available. These programs are released under a license that guarantees the rights to read, modify, and redistribute the software freely.