Trojan Scanner for Windows

Run a free Trojan scan to detect trojans, backdoors, suspicious installers, and downloader activity on Windows 11, 10, 8, and 7.

Start a free Trojan scan and check your PC for hidden threats:

Start Free Trojan Scan How to Scan for Trojans

Signs You Need a Trojan Scan

Use a Trojan Scanner when you need to scan for trojans, suspicious remote-access behavior, or malware dropped by fake installers.
Adware

Lots of Desktop Pop-ups

Frequent pop-up ads and messages advertise products or say your device is infected.

Performance

Slow Computer

Trojans and the malicious software they download take a lot of computer resources, making your device run slowly.

Stability

Applications Won't Run

Programs won't run from the Start menu or Desktop—or programs execute that you didn't start.

Browser Hijack

Annoying Internet Pop-ups

You get multiple pop-ups the moment you start browsing the Internet.

Remote Access

Computer Has a Mind of Its Own

Your device turns off, launches applications you didn't start, or prints documents you never sent.

Data Theft

Unexplainable Data Usage

Your internet connection is slow because the Trojan is sending data back to the hacker.

Trojan Scanner
Trojan Scanner Detect trojans before they spread deeper into Windows

Scan for trojans on Windows before they open the door to more malware

Use Loaris when you need a free Trojan Scanner for Windows that can detect suspicious files, stealthy startup entries, fake updates, and downloader-style infections before they lead to bigger cleanup problems.

Download Trojan Scanner

How to scan for trojans on Windows

This page is meant for users who want a Trojan Scanner for Windows, not just a generic antivirus pitch.

1. Start the Windows Trojan scan

Download Loaris, launch the scanner, and run the first scan when you suspect a fake installer, suspicious attachment, pop-ups, browser abuse, or unusual remote-access behavior.

2. Review detections and suspicious traces

Check trojan detections, startup entries, browser traces, and bundled junkware that may have arrived with the original infection.

3. Remove threats and run a clean verification pass

After cleanup, run one more scan to verify that the trojan, downloader, or backdoor-style traces are no longer active on the PC.

How to scan for trojans on Windows

Choose the right Windows scan path

Use the focused Trojan Scanner when the problem looks like a fake installer or backdoor. Use the broader Virus Scan when the threat is still unclear, or the Free Antivirus check when you already have Defender or another suite and want a second opinion.

Free Virus Scan for Windows

Use the broader Free Virus Scan for Windows page when you want a full malware check across suspicious files, browser abuse, and startup traces.

Don't take our word for it

“We use Loaris on all of our company computers. Our experience is that Loaris is effective and trouble free.”
- Robin G., Fort Worth, TX
“Loaris provides an extra, invaluable layer protection against malicious data, and that makes me and our systems feel safer!”
- Billy H., Sarasota, FL
“Eliminating hundreds of potential malware and trackers every week for our entire organization.”

Trojan Scanner FAQ

What is a Trojan Scanner?
A Trojan Scanner is a security tool used to scan for trojans, detect Trojan horse malware, and remove the suspicious files or traces they leave on a Windows PC. It is most useful when the problem looks like a fake installer, backdoor, downloader, or suspicious remote-access event.
How do I scan for trojans on Windows?
Download the scanner, run the first Trojan scan, review the detections, then remove suspicious items and rerun a verification pass. This is the fastest way to check whether a Windows 11, 10, 8, or 7 device shows signs of Trojan horse malware.
Can I use Loaris as a free Trojan Scanner?
Yes. Loaris offers a free Trojan scan so you can detect trojans, suspicious files, and malware-related symptoms before deciding whether you need a deeper cleanup workflow.
Is Trojan Scanner a different product from Loaris Trojan Remover?
No. Loaris Trojan Remover is the product you download. This page uses “Trojan Scanner” because many users search for a tool to scan for trojans first. In practice, the same Loaris app helps you detect suspicious files, review the findings, and remove trojan-related threats from Windows.

Need help? For a broader malware check, open Free Virus Scan for Windows. If you want a second-opinion antivirus scan, open Free Antivirus Check for Windows. You can also review the Virus Scan Guide or visit the FAQ.