My certificate is due for renewal in December. So I am starting to worry
now!

I know you cannot buy now and have that added to the end of the current
certificate which would help so ...

It is recommended that you collect the certificate from the same machine as
ordered from and that the machine should be XP. So what if you do not have
access to a XP machine?

Such is the confidence I have in Comodo making the ordering simple!

As Microsoft have now all but dropped support for XP I might not have any XP
machines left by the time my order comes up for renewal and why should I
continue to keep one machine just to order a certificate every 3 years?

Thanks

John Fligg