LockHunter - It is a free tool to delete files blocked by something you do not know.

AdwCleaner - AdwCleaner is a free removal tool for : Adware (ads softwares)

Wise Force Deleter - Delete Any File That Windows Can’t Delete.

Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .

FileASSASSIN - FileASSASSIN is an application that can delete any type of locked files that are on your computer.

HijackThis - HijackThis is a malware detection and removal tool that's ideal for users who demand more granular control over every aspect of their computer's performance.