QuickBooks Backup Error 2277: Causes, Prevention, and Fixes?? QuickBooks Backup Error 2277 is caused by antivirus/firewall interference, insufficient folder permissions, or damaged files. To fix it, temporarily disable security software, check and grant access permissions for QuickBooks, and run the "Verify Data" and "Rebuild Data" tools. Prevent future errors by updating QuickBooks regularly, allowing QuickBooks through the firewall, and backing up files on a secure, accessible storage location. https://quickbooks-issue.hashnode.dev/guide-to-using-intuit-data-protect-fixing-backup-errors