A "blue screen of death" (BSOD) refers to a critical error screen that appears on a Windows computer when the operating system encounters a problem it cannot recover from, usually causing the system to suddenly restart.
A slow or crashing computer can occur due to malware/viruses. All windows and applications stop responding, appearing exactly as they were when the freeze occurred.
Malicious software on your device can inject extra pop-ups on websites you visit. This could manifest as multiple pop-ups appearing rapidly, covering a large portion of the screen, or even full-screen takeovers, making it difficult to access the intended content.
A malicious program can manipulate your system to open applications or alter settings without your knowledge.
Viruses and malicious software may continuously create files, filling up your system drive. You might have saved large files on your C drive without realizing it.
If you're experiencing emails being sent from your account without your knowledge or consent, it's likely a sign of a computer virus, often referred to as a "malware" or "email worm," which has infiltrated your system and gained access to your email account, allowing it to send out messages to your contacts without your authorization.