computer on company domain. Windows 10 , office 365 , outlook 2016. Lenovo laptop. When you try to set up a signature the icon just spins for about 10 sec and does nothing. I have taken for following troubleshooting steps
1). start outlook in safe mode
2). uninstall and re-install office from portal.office.com
3). do office updates
4). run office set up and recovery tool
5). deleted outlook profile
A restart was done after each step.