I'm using the latest DOpus 12 64-bit on Windows 10 Pro 64-bit. This is a fresh install of Windows 10 Pro on a formatted SSD (I came from Windows 7 Pro a few days ago).
I have never had a problem entering my license certificate until I went to Windows 10.
I can load the license certificate and it will tell me it's valid. Everything will be fine for a day, or only a few hours, and then it will pop up the License Manager and act as if I'm not licensed!
This has happened at least three times over the past two days. Sometimes I can enter the certificate again and it will accept it, but other times it will pop up a window saying that "Access is Denied and that I must have Administrator privileges in order to install a certificate".
I only have one account on this computer that I log into and I am the Administrator.
The access denied error means that something is preventing your Windows account from writing the certificate data.
If you go to C:\ProgramData\GPSoftware\Directory Opus and delete dopus.cert then try it again, that may resolve things.
On a normal Windows 10 setup, you should see a UAC prompt when installing the certificate. Does that happen OK?
If it still isn't working, making a Process Monitor log of what happens when you install the certificate may reveal what's going wrong. Please zip and send the log (or a cloud storage link to it) via email or private message if you make one.
No, don't worry about that. After a further look into things, the UAC prompt only happens in some situations and a lack of one isn't an issue on its own. I was mistaken when I said it should always appear.
Thanks for the logs and help diagnosing things. We've made a few changes that might help based on them, too.