Dr. Panagiotis M. Zigouris
PhD. Computer science and Engineering
COMMON DESKTOP PC PROBLEMS – AND HOW PROFESSIONALS IT ACTUALLY FIX THEM
A practical, beginner-friendly guide to the most frequent hardware and software issues on desktop computers — explained in simple terms with real-world troubleshooting methods used by professional IT engineers
Desktop computers have become so common in our lives that we often stop thinking about how much we rely on them—until something goes wrong. One moment everything is working perfectly, and the next, the screen freezes, strange noises come from the case, files disappear, the internet refuses to connect, or the computer simply refuses to turn on. For many people, these problems feel mysterious, frustrating, and sometimes even frightening.
The truth is that most desktop PC issues are not random disasters. Nearly every common problem follows patterns that professional IT engineers and computer technicians recognize immediately. Behind every “dead computer,” slow system, blue screen, overheating warning, or software crash, there is usually a logical explanation and a practical solution. The challenge is that many beginners have never been shown how professionals actually approach troubleshooting.
This book was written to change that.
Rather than overwhelming you with technical jargon, complicated engineering theory, or advanced programming concepts, this guide focuses on clear explanations and real-world repair logic. You will learn how experienced technicians think when diagnosing problems, how they isolate faults step by step, and how they avoid making issues worse during repairs.
Inside these pages, you will discover the most common desktop PC hardware and software problems encountered in homes, offices, gaming setups, and workstations. More importantly, you will learn the practical methods professionals use to solve them efficiently—from power supply failures and overheating CPUs to corrupted operating systems, malware infections, driver conflicts, memory errors, and failing storage devices.
You do not need to be an engineer to understand your computer better. You only need curiosity, patience, and a willingness to learn systematically.
Whether you are a student, office worker, gamer, freelancer, business owner, or simply someone tired of paying for unnecessary repairs, this book will help you gain confidence in handling computer problems calmly and intelligently.
Every expert technician started as a beginner. This book is your starting point.
Panagiotis Zigouris – Computer and network engineer
ORCID: https://orcid.org/0009-0004-1568-0237
Panagiotis Zigouris was born in Athens, Greece in 1977.
He is a doctor (Ph.D) in Computer Science & Engineering.
From 2003 works as an independent (freelance) computer and network engineer.
He has worked with a variety of companies as an IT security consultant, and has been responsible for networking infrastructure and handling social media in public administration and political offices.
He was also involved (most notably) in the Olympic Games Test Events (2002-2004), in the Olympic and Paralympic Games “Athens 2004” in the area of technology, in Rhodes Island Games 2007, again in the IT department, as IT staff in the Special Olympics World Summer Games 2011, to the Greek Olympic Winners Asssociation as Digital Technology Manager, in the Filathlitikos Athletic Association as a consultant for the development of digital applications for sports education and corporate responsibility and finally to the Non-Profit Organization “Academy: Society and Sports” as a strategic planning consultant.
He is specialized in safe storage and database security, corporate and individual, while constantly participates in conferences and workshops for the security and the challenges of the modern digital world and the A.I.
He conducts training courses for company employees and executives on computer operation and secure internet browsing and he is an active blogger covering with his articles issues of safety, technology and information, in his area of expertise.
After his first book – “Contemporary Methods of Digitization”, Part of his academical research, this second one, constitutes a collection of most common hardware and software problems and possible solutions, gathered from his long experience as an IT and Network Engineer.
Awards:
Hellenic Olympic Winners Association
2026
Ιστορική σύμπραξη στον ελληνικό αθλητισμό με βλέμμα στο αύριο
2025
Το ΟΑΚΑ «Σπύρος Λούης» υποδέχθηκε τους Ολυμπιονίκες και Παραολυμπιονίκες του Παρισιού
2023
Social Contribution:
He is officially registered in the Donor List of the Hellenic Museum of Informatics for supporting and strengthening the museum’s collection, actively supporting technological memory.
Participation in social solidarity actions and support for vulnerable groups:
Οι Ολυμπιονίκες στο πλευρό της κοινωνίας: Πασχαλινή δράση αλληλεγγύης με ουσιαστικό αποτύπωμα
Continuers – Volunteers – Athens 2004
He was also President of the Continuers – Volunteers – Athens 2004 Organisation (Συνεχιστές – Εθελοντές – Αθήνα 2004) from 2013 to 2015
Σύσταση νέου Διοικητικού Συμβουλίου – Συνεχιστές Εθελοντές – Αθήνα 2004
Retro Computing & Contributions:
Known in the Amiga community for uploading Greek documentation and localization catalogs on Aminet, as well as AmigaOS hacks and customisations. (1996-2002)
https://aminet.net/package/game/edit/SWOSEdLoc_GR
https://aminet.net/package/pix/nicon/Greek_Locale
https://aminet.net/package/util/boot/FBlitGuideGR
https://aminet.net/package/util/boot/Amiga_PC
https://aminet.net/package/util/sys/ElladaMOS
https://aminet.net/package/pix/nicon/Sens_Icons
https://aminet.net/package/comm/tcp/Rc-Ftpd_GR
https://aminet.net/package/pix/wb/PanosWB
https://m68k.aminet.net/package/pix/wb/PanosNewIconWB
He was also Language Administrator for the Greek Department of ATO (Amiga Translation Organization) 2001-2002.
https://web.archive.org/web/20020802001347/http://home3.inet.tele.dk/ole_f/ato.html
A sample of his work also published in Amiga Format Magazine, Issue 118, Christmas 1998.
As well the Greek translation of Yoda Soccer menus (2d soccer game similar to Sensible Soccer – SWOS)
