[New update]

Finally fixed ... after trying many times I finally completely uninstalled the (old ver) with RevoUninstall, then reinstalled the old version, and bingo the update worked.

[New update]

Well 3 times I have tried again( first thing in the morning) for last 3 days and still same problem ..... no update!

[New update]

I have CCleaner pro v5.39.

It tells me that a new update is available so I click "Update".  It then displays the downloading box and when 100% is reached this box disappears and that is that nothing else happens.

It does not update!  Why is this so>

Thanks