Free malware tools can help, but some downloads include extra software or confusing offers.
Choose carefully
Free malware scanners can be useful, but download them only from official sources. Avoid mirrored installers and read every setup screen so you do not accept bundled software.
After scanning
Review detected items before removal. If the tool recommends a restart, restart Windows after saving your work so cleanup can finish properly.
Do not install too many scanners
Multiple real-time security tools can slow a PC down or conflict with each other. Use one main protection tool and run extra scanners only when needed.