Do you still have the HP disk software. Please insert the disk software, open the disk and look for a folder name UTIL/CCC/ look for a file name Uninstall_L2.bat and follow the steps. After the procedure, do not restart your computer and put a check mark on the check box that says Restart my computer later. Do the same with Uninstall_L3.bat and Uninstall_L4.bat Finish all Level 2 3 and 4 uninstallation to remove all hp files and restart the computer. That should remove the file.