Seems to me that cure is worse than the disease. It’s way easier to leave an empty directory sitting there. For whatever reason, the warning dialog goes away, even though that directory does not contain the file cited as missing.
In any case, I seriously doubt this is an installation issue. The problem only started happening after I deleted a number of unwanted projects (all in directories name Untitled-something because I didn’t know better at the time). As to defragging, that would make absolutely zero difference other than maybe allowing Cubase to start a bit faster.
Also, OT, but I have wanted to add my system information to a signature, but I cannot find where to do that. Can anybody point me to where I do that? Thanks in advance if you can.