CS101: Computing Technology and You
CS101: Computing Technology and You

How to Secure a Computer Running Windows 10 or 11

Windows is the dominate computer operating system.  Since Windows has such a large installed base it is the main focus for malware and cybercrime.  At last report there are many thousands of new Windows based malware programs created everyday.  There are also now large organized crime rings throughout the world who have discovered that cybercrime is a low risk, high reward endeavor, and are pursuing cybercrime very aggressively.  If you use Windows to access a network it is imperative that you take all possible security precautions.

Step 1:Backup Computer and Set Restore Point.
If you are attempting to secure an already used computer there is a chance the process causes you to lose valuable data.  To guard against data loss a full backup of your hard drive is recommended.  The easiest and safest way to go is to use an external hard drive.  A good place to start shopping for hard drives is Newegg.com. It has low prices and lots of user reviews. These will help you find good external hard drive and price to beat:

Newegg External Hard Drives

Windows 10 currently only offers a backup utility. However, it is simpler to setup and makes it easier to automatic backups. To learn how to setup Windows 10 backup follow the link below:

Windows 10 and 11 Backup

If you are attempting to secure an already used computer there is a chance that the securing process causes Windows to function incorrectly.  To guard against this you should also set a Restore Point.  If Windows starts to behave incorrectly you can sometimes fix it by restoring your Windows installation to an earlier restore point. 

To learn how to set a restore point in Windows 10 read the information at the following link:
http://windows.microsoft.com/en-us/windows-10/create-a-system-restore-point

Step 2: Make sure Windows Automatic Update is turned on.
Windows, like most software, has many security flaws that can be taken advantage of by malware.  Many security patches are made available for Windows by Microsoft to fix these flaws.  Before putting any security software on Windows you should make sure it is updated using Windows Automatic Update feature. 

To turn on automatic updates in Windows 10 and 11:

Manage updates in Windows

Step 3: Check that all non-Windows software you use to access Internet has automatic updates turned on.
Check all non-Windows programs you use to access the Internet (email, web browsers, PDF viewers, social programs, iTunes, etc.) and make sure that automatic updating is enabled.  You can often find these settings by looking at the options presented at the top of an open window. If you cannot find the updating functions you can use Google to find the location.

Step 4: Install Firewall to protect from unauthorized network traffic
Next you need to block unauthorized network access to your computer.  This is the job for a firewall. A software firewall will attempt to keep unauthorized network traffic off your computer, or if some malware does infect your computer stop it from sending information back out on to the network. Both Windows 10 and 11 all have built-in firewalls. However, since these are on by default this is one layer of security the bad guys will spend time learning how to beat. This is why it is recommended you supplement the Windows built-in firewall with a third party firewall. Download and install the following firewall to supplement the Windows built-in firewall:

Tiny Firewall:
http://tinywall.pados.hu/download.php

Step 5: Install malware detection software (anti-virus) and set to update each time Internet is accessed.
(TWO IMPORTANT NOTES:

1) If you have any malware detection software installed (usually called anti-virus software) make sure you uninstall the software before installing its below listed equivalent.

2) When installing software make sure to read each dialog box during the install process and uncheck any other programs that you do not want installed.  Also, do not be scared into buying the upgrade version.  If you do all the security steps listed here you will have good protection.)

Once you have Windows backed up, and updated, you are ready to put on the following malware detection software to stop viruses, Trojan horses, worms, adware, spyware, rootkits etc. from infecting your computer:

Avast Free Windows 10 (make sure to click the Free Download button):
https://www.avast.com/windows-10-antivirus

Avast Free Windows 11 (make sure to click the Free Download button):
https://www.avast.com/windows-11-antivirus

Step 6: Create a password protected Local (or Standard) user account for yourself and for any other users of your computer.
When you turn on a Windows computer for the first time it asks you for some information (name, time zone, etc.) and then automatically creates an administrator user account.  An administrator user account means that you are allowed to make changes to the computer such as installing new software.  After that each time the computer starts up it automatically logs the user into the administrator account.  This practice creates two security problems.  One, it means that anyone who has physical access to the computer (roommates, parents, thieves, etc) could gain access to all the information on the computer.  Two, if the computer is attacked by malware (viruses, Trojan horses, worms, etc) the software can more easily install itself since a computer administrator account is allowed to install software.  To eliminate these two security flaws on a Windows computer learn how to create a Local user account and assign a password to the new account.

How to create a local account in Windows 10 and 11:
https://support.microsoft.com/en-us/windows/create-a-local-user-or-administrator-account-in-windows-20de74e0-ac7f-3502-a866-32915af2a34d

Step 7: Consider using the Tor web browser and a Virtual Private Network (VPN) for web activity.
To learn about Tor please visit the following web site:
https://www.torproject.org/about/overview.html.en

To learn about Virtual Private Networks please read the information at the following link:
https://thebestvpn.com/what-is-vpn-beginners-guide/

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