WiFi is a wireless technology that allows you to combine various devices: in particular, computers, laptops and mobile devices (phones, tablets, and so on) into a common network for the exchange of information, for data transfer and for joint user interaction. This technology is now very popular, it is actively used by various manufacturers and many other companies. In connection with the fact that most modern laptops and other mobile devices are equipped with a WiFi module. That is, a special device that is located directly inside the computer and allows you to use this technology without restrictions.
If we talk about desktop computers, then most of these PCs do not have a wireless network module, except that it is in the latest modern models. If the computer does not have a WiFi module initially, you can install it by connecting a small USB WiFi adapter.
In order to connect Windows XP to WiFi, you need a computer with the Windows XP operating system installed, in fact, a WiFi module, and for this module to be configured. To configure the wireless network module, a special driver is used, which is supplied on a disk with the adapter itself. Or this driver may already be embedded in the USB WiFi adapter, and when it is connected to a computer, it is automatically installed and configured. If we are talking about a laptop, then when buying a kit, as a rule, there is also a disk with all the necessary drivers. Because without drivers, the device simply will not work. How to determine if the laptop has a WiFi module and is it working? Very simple.
It displays all the components of our system, all the equipment that is on our computer.
This is the hardware that connects the computer to the network. Expanding the list of network cards, we see several devices. One of them is a standard network card, which is used to connect to the network via cable and a WiFi module. The name of the NIC is determined automatically.
If we see that this is an adapter, there is a name, a series, this means that it (the device) is defined by the system. It has drivers installed, it works, and it's turned on. With a missing or incorrectly working WiFi module driver, the device in the item " Network boards” will be marked with a warning sign (usually a yellow question mark). This means that you need to update or install the necessary software. To do this, we turn to the website of the motherboard manufacturer and download the appropriate driver or install it from the native disk that came with the laptop.
Modern laptops in recent years, as a rule, are not equipped with a driver disk, due to the fact that most laptops no longer have a CD— drive, and the manufacturer offers to download all the necessary drivers from the official website.
Often, a special switch button is used to enable and disable the wireless network module on laptops (it can be located on the end of the case in older models). 
Or keyboard shortcut fn+
(one of the top row function keys). On different laptops from different manufacturers, the key may differ, but it almost always shows an antenna. 
In most cases, after installing the drivers, there are no problems connecting to WiFi. If you do not know how to connect Wi-Fi on Windows XP -
To do this, it is enough to click on the network icon in the tray (this is the desktop area where programs running in the background are displayed - in the lower right corner of the monitor), select yours from the list of found wireless networks, enter the authentication key (password) and click connect. But this applies to operating systems Windows 7 and above. With Windows XP, it is often difficult to connect to the network.
It would seem that today there is Internet, and tomorrow there is no connection. This is due to the fact that the system automatically determines the Internet protocol data, and this automation in XP does not always work correctly. In this case, these data can be entered manually. Where to get them? They are specified in the contract with the provider. Or you can see them in the settings of your router. Enter the router settings page and copy them from there.
To manually enter Internet Protocol data:
How and where can I see the WiFi password in Windows XP if I forgot it?
Another way to remember a forgotten WiFi password is through the router settings page. To get into the router settings, you need to enter its address in the address bar of the browser - for example - 192.168.0.1, the password and login for access by default are admin, admin (the exact data is indicated on the back cover of the router itself). The router itself must be connected to the computer via a cable, then on the settings page in the security section you can see the forgotten WiFi password.
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