By Ricky Browning · Browning PC, Valdosta, GA
Your computer has been acting a little… off lately. It's slower than usual. Some weird pop-up appeared out of nowhere. Your browser keeps going to a homepage you never set. Sound familiar? These are classic warning signs that something's wrong — and in many cases, it's malware.
In Valdosta and across South Georgia, I see virus and malware infections regularly when customers call for help. The good news: most infections are caught early enough to clean up without losing your files — if you act quickly. The key is knowing what to look for.
Here are the five most common signs that your computer has a virus, explained in plain English — plus exactly what you should do when you spot them.
If your PC used to start up in 30 seconds and now takes 3 minutes, something is consuming your CPU and memory in the background. Malware — especially cryptocurrency miners and spyware — runs constantly in the background, hogging your computer's processing power so it can do its dirty work.
The slowdown happened suddenly, not gradually over months. Your fan runs loudly even when you're not doing much. Opening a browser tab or Word document takes noticeably longer than it used to.
💡 Tip: Press Ctrl + Shift + Esc to open Task Manager. If you see an unfamiliar program using 30–90% of your CPU when you're not doing anything, that's a red flag worth investigating.
Keep in mind that slowness can also be caused by a full hard drive, too many startup programs, or an aging computer. But if it came on suddenly with no obvious explanation, a malware scan should be your first move.
Pop-up ads are mostly a relic of the early internet — modern browsers block most of them. So if you're getting pop-ups even when your browser is closed, or you're seeing ads on websites that never had them before, adware has almost certainly gotten onto your machine.
Adware often sneaks onto your computer when you install free software and don't uncheck the "bonus" programs during setup — things like browser toolbars or "PC optimizers" that are actually junk. Once installed, they inject ads into every webpage you visit and generate annoying pop-ups constantly.
This one is sneaky. You open Chrome or Edge one morning and notice your homepage is different, there's a new toolbar you never installed, or your searches are going through some engine you've never heard of instead of Google. These are signs of a browser hijacker — a type of malware specifically designed to redirect your web traffic.
Browser hijackers are frustrating because simply changing your homepage setting back doesn't fix it — the malware just resets it. You need to actually remove the infection.
For more on keeping your network and devices secure, check out our post on Wi-Fi Security: Protecting Your Home & Business Network.
Here's something a lot of people don't realize: sophisticated malware actively turns off your defenses. One of the first things many viruses do after infecting your computer is disable Windows Defender or your third-party antivirus, and block Windows from downloading updates. Why? Because updates often contain patches that would remove the malware.
💡 Tip: If Windows Security says it's on but you can't open it, or it keeps turning itself off, that's a strong indicator of an active infection — not just a settings glitch.
If your antivirus was disabled and you didn't do it yourself, treat that as a confirmed infection until proven otherwise.
Have you spotted a program in your Start menu or installed apps list that you don't remember installing? Or maybe a friend texted you saying you sent them a weird link on Facebook? These are signs of two different but equally serious problems.
Unfamiliar programs can be anything from annoying adware to serious Trojans that give hackers remote access to your computer. Trojans in particular are common — they disguise themselves as legitimate software (a free game, a "PDF converter," a fake update) but secretly give an attacker control of your machine.
Unusual account activity — like emails sent from your account that you didn't write, password reset emails you didn't request, or social media posts you didn't make — usually means your passwords have been stolen, often by a keylogger (a type of malware that records everything you type).
Found one or more of these warning signs? Here's what to do right now:
Pull out the network cable or turn off Wi-Fi. This stops the malware from sending your data out or receiving new instructions from attackers while you work on cleaning it.
Download Malwarebytes Free (malwarebytes.com) from a clean device if you need to, put it on a USB drive, and install it on the infected PC. Run a full scan. Malwarebytes catches a lot of threats that Windows Defender misses.
💡 Tip: Run the scan in Safe Mode for best results — press F8 during boot (Windows 10/11: hold Shift while clicking Restart, then choose Safe Mode).
If you've used your banking, email, or social media on the infected computer, change those passwords now from your phone or another device that isn't infected.
If Malwarebytes finds something it can't fully remove, or your computer is still acting strange after the scan, it's time for professional help. Some infections — especially rootkits and advanced ransomware — require tools and techniques beyond a standard scan.
📞 Need help removing a virus in Valdosta or South Georgia?
Browning PC offers remote virus removal and in-home visits. No contracts, no diagnostic fees.
229-561-1674 · ✉️ ricky@browningpc.com
📅 Book a remote or onsite appointment
The best virus is the one that never gets on your computer. A few habits go a long way:
For a deeper look at common tech problems we see locally, check out our post on The 7 Biggest Tech Problems We See in Valdosta Homes & Small Businesses.
Can a computer have a virus with no obvious symptoms?
Yes. Some malware — especially spyware and keyloggers — is designed to run silently in the background, stealing passwords and data without slowing your computer noticeably. That's why regular antivirus scans matter even when everything seems fine.
Is a slow computer always a sign of a virus?
Not always. Slowness can also come from a full hard drive, too many startup programs, outdated hardware, or Windows updates running in the background. But if the slowness came on suddenly with no clear cause, run a scan to rule out malware first.
What's the difference between a virus and malware?
"Malware" is the broad term for any malicious software — it includes viruses, spyware, adware, ransomware, and Trojans. A virus is technically just one type that copies itself and spreads. In everyday conversation people use the words interchangeably, and the warning signs and fixes are usually the same.
If you're in Valdosta or anywhere in South Georgia and your computer is acting up, don't wait and hope it gets better on its own — infections typically get worse the longer they run. Reach out and we'll get it sorted out, usually the same day.