Windows 10 PCs face threats like ransomware, in which your computer's contents are encrypted and you can't access them without paying a ransom (usually in cryptocurrency), zero-day attacks which are exploits of brand new vulnerabilities before the software developer knows about it or has a chance to fix it, and other advanced forms of malware that are much more sophisticated than your traditional computer virus (although those remain a threat as well). Microsoft issues 83 patches, one for actively exploited vulnerability.Get patching! Wormable Windows flaw headlines Patch Tuesday.Patch now! Emergency fix for PrintNightmare released by Microsoft.HiveNightmare zero-day lets anyone be SYSTEM on Windows 10 and 11.Consider the following headlines from thus far in 2021: Does Windows 10 need antivirus to protect your PC from today's threats like ransomware and other forms of malware? The short answer is yes.