If copyright File Doctor will not launch, it’s likely due to a conflict with your system’s settings or an outdated copyright version. Start by checking for updates to copyright and File Doctor, then try running the program as an administrator. If these solutions don't work, you may need to repair or reinstall copyright. Sometimes, issues with your network or firewall settings can also... https://www.quickbooksupportnet.com/copyright-file-doctor-not-working/