What’s the Difference Between a Virus, Worm, and Trojan?
You hear these terms thrown around all the time: “My computer has a virus!”“Is that a worm?”“I think it’s a Trojan.” But are they all the same?Not quite. Let’s break …
What Is a Trojan Horse Virus?
You’ve probably heard the term “Trojan horse” —but in cybersecurity, it means a lot more than just ancient Greek deception. Let’s talk about Trojan viruses: what they are, how they …
What Is a PUP in Antivirus Results? Should You Be Worried?
You run a virus scan and it shows: PUP.Optional.MyAppInstaller detected No big red warning. No “threat quarantined.”Just three little letters: PUP. So, what is a PUP — and should you …
How to Use File Hashes (SHA256/MD5) to Verify Integrity
You’ve downloaded a file from a website, and you want to make sure it hasn’t been tampered with. The site provides something like: SHA256: 0c9d19f5ab9e8a7d5c2e… But what does that mean? …
How to Tell If a Downloaded File Is Genuine or Fake
With so many download links online, it’s hard to know which ones you can actually trust. Just one wrong click could install malware, adware, or data-stealing trojans. Here’s how to …
How to Tell If a Downloaded File Is 32-bit or 64-bit
You’re ready to install new software, but the site gives you a choice: “Download 32-bit” or “Download 64-bit” — which one should you choose? More importantly, how do you tell …
How to Stop a Program from Running at Startup (Windows & macOS)
Is your computer slow to start?You log in, and a dozen programs launch before you even open your browser. Many apps set themselves to run at startup — often without …
What to Do If a Program Refuses to Uninstall
You go to uninstall a program…But nothing happens.Or worse — it says “Uninstall failed” or just disappears from the list. It’s frustrating — but fixable.Here’s how to force uninstall stubborn …
What Is a False Positive in Antivirus Scans?
You download a clean app from a trusted site.You scan it — and suddenly, your antivirus screams “Threat detected!” But is it really infected? Maybe not. That might be a …
How to Clean Up After Uninstalling Multiple Programs
You’ve finally done it — uninstalled a bunch of programs cluttering your PC.But don’t celebrate too soon. Even after uninstalling, leftovers can pile up:hidden files, registry entries, broken shortcuts, and …