Recently, the Windows operating system series has a computer-level flu, called: BlueKeep (CVE-2019-0708)
Almost all old Windows operating systems are infected, why? Because the operating system has loopholes.
Hackers can sneak into the user’s computer and steal data, monitor and even put a ransomware, maybe can see who hacked or be hacked every moment, but why should vaccinate your computer specifically?
Because the hacker tool is placed on the Internet, anyone can use it, meaning that if you don’t update and wait for the automatic hacked, even if the user does nothing.

How do I need to prevent it ? Install update patching vulnerability.
Choose your operating system update package.

Download:
Windows 7 Systems Service Pack 1 (X86 X64)
Windows XP Systems Service Pack 3
X86
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More Read Old OS Update windows 2003
More Read Old OS Update windows 2008

CVE-2019-0708 does not affect Microsoft’s latest operating systems — Windows 10, Windows 8.1, Windows 8, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, or Windows Server 2012.

If you use Windows 7 genuine system, you can upgrade Win 7 to Win 10 to the latest operating system.