Do I have to install a firewall on my PC in order to connect to the Internet?

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Of course, it is necessary to install, and I think Rising and Kaspersky's are very good!

This still depends on the situation.

If it is a genuine operating system of Windows 10, it is still necessary to install one. Because at present, there are still many bugs in the operating system of windos10. It just so happens that Windows has installed a variety of computer housekeepers and there is a common situation of lagging, CPU or disk occupancy of 100%.

Therefore, it is still necessary to install a personal firewall, which can at least reduce the probability of system crash when it is critical.

I bought myself 2 computers, one for home and one for work. The work computer was installed with a firewall when the unit purchased, and there was really no problem with it for more than 2 years. When I bought the computer at home, my wife didn't install a firewall when I bought it, and the system has had 2 problems.

If it is a piracy system, there is no need. Because the value of the pirated system is not high, it is less than 100 fast to find a professional master to install, this kind of system is generally used for home or entertainment, and it will not store too much important information, if it is a system below windows8, then install a computer housekeeper on the line.

1. At present, the mainstream operating systems on the computers we use are equipped with (integrated) "software firewalls".

2. The most mainstream three-series systems are Windows, macOS (Apple system), Linux (Penguin), and the current versions that are mainly popular on the market have firewalls.

3. But these firewalls are very common and are also known by most developers. Moreover, most computer users do not understand the computer, do not understand the role of firewalls, and do not know how to set up firewalls. As a result, these system-integrated firewalls are often vulnerable to the small tactics of malware.

For example, in win, if an application wants to access the network, the firewall jumps out of the dialogue and asks whether to let it go, the vast majority of users don't want to think about it, they don't look at it, and even if they look at it, they can't understand it, and they habitually click "confirm" to pull it down.

4. Therefore, in the environment with strict security requirements, the hardware firewall on the network is generally used to ensure the security of the network under the control of professionals.

Computers generally do not have their own firewalls, but operating systems generally have built-in firewalls, which are generally useful. For normal use, you also need to install a professional firewall such as Security Guard or PC Manager.

Now there are a lot of firewalls, Rising, 360, Kingsoft, Jiangmin, etc. have free firewalls, I installed a 360 firewall, 360ARP firewall by intercepting ARP attack packets at the core layer of the system, to ensure that the correct MAC address of the gateway is not tampered with, can ensure that the flow of data such as the correct direction, not through the first slag Shouhe, so as to ensure the security of communication data, ensure the smooth flow of the network, ensure that the communication data is not controlled by a third party, and perfectly solve the problem of ARP attacks in the LAN.