8.5.10 upgrade cannot find installed Cubase 8,5

I have strange issue : Cubase 8.5.10 update cannot find installed Cubase 8.5 . 64 bit version on 64 bit WIn 10.
All is working (cubase 8,5) normally though

maybe you installed the 32 bit version instead of the 64bit?

Nope:) cubase user from 1998:)

8,5 is 64 bit install
update cannot see it. Hm?

Yes weird indeed, sorry haven’t had this (yet)!

You can try to mark “Install for anyone who uses this computer (all users)” to see if it works.

But maybe the only solution is to uninstall Cubase and start everything again (8.5 and update to 8.5.10).