New version hangs during installation

I decided to upgrade what has been an excellent program, as a mark of good faith, and now I cannot install version 7.02. The install goes OK until it reaches a previously-attempted account addition, gives a certificate warning, then presents a ‘Going Offline’ window and hangs.
Not very happy about this. Is there a fix, and can I also relocate my local folders when, or maybe if, we can get this sorted out?

we cannot replicate this issue. Are you able to perhaps screenshot the certificate warning?