Signature option does not open in outlook 2016

I have tried all the tricks everyone has mentioned with no success.

I changed the registry entries

I repaired office, both quick and online

I have uninstalled office and reinstalled office 3 times

I deleted all office programs, files and temp files

Still no signature box pops up.

I have tried 32 bit and 64 bit

This is quite ridiculous, brand new computer, brand new install

There was no "Microsoft Office Apps" on the computer prior to installing.

Not sure what to do now.