Anti-malware
Malwarebytes Anti-Malware (MBAM) is an anti-malware software for Microsoft Windows and Mac OS that finds and removes malware. Made by Malwarebytes Corporation, it is available in a free version, which scans for and removes malware when started manually. There is also a paid version, which additionally provides scheduled scans, real-time protection and a flash memory scanner.
Windows – https://www.malwarebytes.com/mwb-download/
MAC – https://www.malwarebytes.com/antimalware/mac/
AdwCleaner – https://toolslib.net/downloads/viewdownload/1-adwcleaner/
A free removal tool for : Adware (unwanted adssoftware), Toolbars, Hijackers
It comes with both “Scan” and “Clean” mode. It can be easily uninstalled using the “Uninstall” button.
Compatible with Windows XP, Vista, 7, 8, 8.1, 10 in 32 & 64 bits.
Antivirus
BitDefender – http://www.bitdefender.com/solutions/free.html
System Requirements:
Operating system: Windows 7, Windows 8, Windows 8.1, Windows 10
Hard disk space: 2 GB available free hard disk space
Intel CORE Duo (2 GHz) or equivalent processor
Software requirements: Internet Explorer 10 or higher
Microsoft Defender –
Depending on which operating system your computer is running, you can use either Windows Defender or Microsoft Security Essentials to get rid of malicious software and viruses.
If your computer is running Windows 8 or Windows 10, you can use the built-in Windows Defender to help you get rid of viruses, spyware, or other malware.
If your computer is running Windows 7, or Windows Vista, Windows Defender only removes spyware. To get rid of viruses and other malware, including spyware, on Windows 7, Windows Vista, and Windows XP, you can download Microsoft Security Essentials for free.
Microsoft Security Essentials – https://support.microsoft.com/en-us/help/14210/security-essentials-download
Excel and Word Viewers
Open, view, and print Excel workbooks, even if you don’t have Excel installed. This download is a replacement for Excel Viewer 97 and all previous Excel Viewer versions.
Excel – https://www.microsoft.com/en-us/download/details.aspx?id=10
Microsoft Word Viewer is a small, freely redistributable program that lets you view, print, and copy Word documents on a computer that does not have Word installed.
Open Office
A software suite that contains a word processor (Writer), a spreadsheet (Calc), a presentation application (Impress), a drawing application (Draw), a formula editor (Math), and a database management application (Base).
http://www.openoffice.org/download/
Rootkit Scanner
Malwarebytes Anti-Rootkit BETA is a free, cutting edge rootkit scanner & remover that detects and eliminates even the nastiest malicious rootkits.