This tool is not an official VirtualDJ product; it is a "patched" or "cracked" utility distributed via file-sharing sites and YouTube descriptions .
Older versions of VirtualDJ sometimes allowed users to change the videonologo value from 0 to 1 in the Windows Registry , though this is often patched in newer builds.
Restore from backups or reinstall cleanly
While the appeal of free, fully unlocked software is high, using patched tools from unverified sources carries significant risks and practical downsides. The Risks of Using Patched Software