CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
Wise Disk Cleaner - Clean junks of Browsers, remove junk and useless files of Windows and Defragment your disk. Wise Disk Cleaner can delete these unnecessary files on your hard disk to free up disk space and make your computer run faster.
360 Total Security - 360 Total Security was created by Qihoo 360 Technology Co. Ltd. This Chinese-based company provides a number of software solutions for PC, mobile devices and online security. Read more about 360 Total Security.
CleanMyPC - A smart cleaning tool for a better-running computer.
Microsoft Security Essentials - Microsoft Security Essentials is Microsoft's own foray into the world of virus protection.