As QuickBooks users, it's common to come across different errors while working in the software. QuickBooks error 15240 normally occurs when you try to download a software update. At this moment, you can consult me and get valuable error support and guidance. I am a professional QB technical expert with a long experience in helping people resolve various errors in the software. You can reach out to me to get a speedy diagnosis and resolution of a wide range of glitches and errors.