Trojans disguise themselves as harmless software and use persistence to survive removal. Use layered defenses - patched software, endpoint protection, behavior-based tools, and safe browsing - to prevent and remove them.
Run a real-time antivirus and a second on-demand scanner to remove spyware. Keep software updated, use a modern browser with minimal extensions, and follow safe habits like avoiding unknown email attachments and untrusted downloads.
Use built-in Microsoft Defender and a reputable on-demand scanner to detect and remove spyware. Keep real-time protection enabled, run regular full scans, and follow simple removal steps when you see symptoms.
Reduce pop-ups and junk mail with browser blockers, trained email filters, address-management tricks, and up-to-date security software.