is windows defender an antivirus in windows 7
Windows Defender Windows Defender, officially called Windows Defender Antivirus in Windows 10 Creators Update, is an anti-malware component of Microsoft Windows. It was first released as a free antispyware program download for Windows XP, shipped with Windows Vista and Windows 7 and made into a full antivirus program replacing Microsoft Security Essentials as part of Windows 8 and later versions.
Denial-of-service attack A wide array of programs are used to launch DoS-attacks.
Hyper-V Hyper-V management tools are not compatible with Windows Vista Home Basic or Home Premium[51][51] or Windows 7 Home Premium, Home Basic or Starter.
Antivirus software Antivirus or anti-virus software (often abbreviated as AV), sometimes known as anti-malware software, is computer software used to prevent, detect and remove malicious software.[1]