The error message states you do not have administrative privileges to delete the VSTSynthfont64 file. That is a Windows, not Band-in-a-Box, error message. Windows thinks you are not signed into Windows as an Administrator. You will likely run into a similar error message each time you try to delete some files.

For Windows 10 you can navigate to Windows Security > Account Protection > View Your Account info to verify if you're signed into Windows as Administrator.


Jim Fogle - 2026 BiaB (Build 1224) RB (Build 7) - Ultra+ PAK
DAWs: Cakewalk Sonar - Standalone: Zoom MRS-8
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home