LockHunter - It is a free tool to delete files blocked by something you do not know.
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.
Wise Force Deleter - Delete Any File That Windows Can’t Delete.
Quad9 - Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
FileASSASSIN - FileASSASSIN is an application that can delete any type of locked files that are on your computer.
1.1.1.1 - The free app that makes your Internet safer.