DANOK

Thanks a lot @scook After seeing your final reply "the Studio instrument plug-ins are either in a user designated non-default location or were accidentally deleted." I decided to search for "SI" on "D:""drive. I found it Then I copied it to "C:\Program Files\Cakewalk\VstPlugins" Now it Works!! Thanks again.

@scookI have done that, the path "c:\program files\cakewalk\studio instruments" is successfully scanned. still the studio instrument .dll is not showing only third party vst are showing I have also Reinstalled the whole software as well as a vst reset.

I have done reset and scan. and th log file shows that the instruments scans are complete plesae help me navigate to "C:\Program Files\Cakewalk" and search if any .dll file is present. Mine doesnt show any dll file and I think that is why the studio instrument is not showing I just want to be sure. Thanks