have Cakewalk Professional and suddenly today I get this message when I save. Have PLENTY of space (18TB). Stupid me downloaded the bandLab app and thats when it happened, but not sure of what to do. Uninstalled BandLab app and still have the problem. AUD.ini file is where it should be, all numbers are correct. Any ideas? Defrag done again and again so that isnt it either. ready to chuck this Cakewalk program and go with something that has actual SUPPORT. Been loyal for 25+ yrs and now its sucking....

Have you tried contacting support?
 
https://help.cakewalk.com/hc/en-us/requests/new
 
 

Yep no answers yet
 

Unlikely installing CbB caused the problem. The error has been reported for some time. Most OPs include a mention of having ample disk space (the error message probably needs rewording - it appears to be a write failure, cause unknown). Try searching Google for
site:forum.cakewalk.com Cannot write file - disk may be full