Why can I not save?

[MR Flo-ax]

I just tried to save.

[Promidi]

Looks like a Windows permissions issue

Try running Cakewalk as administrator.... 

[Starship Krupa]

It's a good idea to go into the Windows Security settings and exclude your Cakewalk Projects folder from Defender's realtime scanning. Also your plug-ins and samples folders.

I don't think that's the issue, though. It looks like permissions to me. If you know how, check the permissions on your Cakewalk Projects folder to make sure that you have Full Control.