Useful Links

Here is a selection of useful links by category.

All links have been checked by SystemTek at the time of publication.


Check if your e-mail address appears on any online dump –

eBooks (Free)

A selection of free eBooks from Microsoft –

Database of Free / Open Access Online Computer Science Books, Textbooks, and Lecture Notes –

Online Malware / Virus Checker

Upload a file to be checked for virus or malware –

Online Website Security Checkers

Check a website for virus or malware –

Free Malware / Virus Removal Software

Sophos virus removal tool –

Kaspersky virus removal tool –

AVG virus and removal tools –

McAfee virus removal tools –

Microsoft malicious software removal tool-

Network Utils

PortQuiz (scan for open ports) –

Cyber Security

National Security Agency’s Ghidra Tool (breaks down executable files into assembly code that can then be analyzed) –

Although we make every effort to ensure these links are accurate, up to date and relevant, we cannot take responsibility for pages maintained by external providers.   If you come across any external links that don’t work, we would be grateful if you could report them to us here.