Installation of version 4.7.2

[boldan]

I have the registered licenced TextPad version 4.5.0 installed on my C drive at work.

If I try to upgrade to 4.7.2, I get a message 1202 "You do not have sufficient priviledges to complete this instalation for all users of the machine. Log on as administrator and then retry this installation". I cannot do this.

When I tried to install version 4.7.1, the installation accepted the licence from the C drive and allowed me to install it on another drive, where I do have write authority. I would like to replace my 4.7.1, who is NOT on my C drive, with 4.7.2