One of the most horrifying views you can have on a PC is a browser that's absolutely jam-packed with extra toolbars.

If you're suspicious that some programs running on your PC shouldn't be there, check out Microsoft's Process Explorer (opens in new tab) to see exactly what each program is doing and why it's running in the first place. Your PC has new software installedĪre you noticing some weird programs in Task Manager that run when your PC boots? Do they often hog resources? Do they frequently request permission to pass through your firewall? These programs might have been included with other software you downloaded and might installed secretly when you installed something else. Likewise, if you can't get into your Task Manager, you know it's time to get busy removing the malware. Did Windows Defender or whatever third-party antivirus you use stop running on its own? Check for any issues (like an update being seriously required), but know that this is usually a clear sign that your PC has been infected.

Determine if teamviewer hacked