Windows system activation tips big collection

Everyone tried to install the system and should know that the system can be used immediately after installation, but it needs to be activated. If it is not activated, the system may not be used anymore. There are many ways to activate it, you can use software, etc. Take everyone to see it.

If not activated in time, Windows XP will not be available after expiration. When you start your computer later, Windows will compare the hardware device you are currently using with the hardware device you used to activate. If the hardware device changes a lot, we can't continue to use our Windows XP unless we can Contact Microsoft and reactivate. The situation is different for the brand machine purchased. The general brand machine is pre-installed with the OEM version of the Windows XP operating system and has been successfully activated. This version of system activation is determined by the BIOS. We can replace any hardware without having to activate it again. Let's take a look at how activation is caused by things!

Related knowledge

What is product activation?

Microsoft Product Activation Service is a software product designed to verify Anti-non-genuine technology with legal licenses.

The activation technology will check which kinds of hardware

The activation technology will check 10 kinds of hardware, namely:

graphics card, SCSI adapter, IDE controller, network card and MAC address, memory range, processor type, processor serial number, hard disk, volume serial number, optical drive.

During the installation of the operating system, the installer will check the above hardware, and record the corresponding data, and save it on the hard disk, in fact, is the WPA.dbl file. In the later activation process, this number and PID will be used to generate a 25-bit string and send it out. And if we install Windows XP with SP1 integrated, or install SP1 and then activate it after installing XP, then we need to send the product key to Microsoft during the activation process, which will shield some networks from spreading widely. The product key leaked out so that products installed with these serial numbers cannot be activated. In the future, each time Windows starts, it will check the hardware repeatedly to ensure that Windows is running on the same computer. Similarly, if we format the hard drive and reinstall Windows XP, we need to activate it again, because the activation number saved on the hard disk is gone (that is, the Windowssystem32WPA.dbl file is missing), we have to re-acquire.

How to backup activation information

Back up the wpa.dbl and wpa.bak files in the system32 folder, and also back up the CDKEY installation. After CDKEY is installed, you can activate Windows XP by copying two files directly into the system32 folder. It should be noted that the activation information of such backup is only valid for the system with the same installation information, for example, the hardware environment is unchanged, the hard disk partition is unchanged, and the like. Emphasize: different CDKEY activation wpa.dbl is different, do not mix.

How does Microsoft Activation Technology work?

Product Activation Technology provides a software product key that is included with the product installation media and that has not been used beyond the scope of the Software Product End User License Agreement (EULA) Work in a proven way. Normally, Windows XP can be installed on a PC, and Office XP can be installed on a PC and the laptop of this PC user. (For further details, please review the EULA provided with the product). During the activation process, the product key information provided in the form of a product identification will be sent to Microsoft's product activation system along with the “Hardware Hazard Code” (a non-unique digital code generated from the PC hardware configuration). In Windows XP SP1, the product key itself will also be sent with the product ID. Activation can be done either directly via the Internet or by calling a customer service call. The number of activations on the same PC using the same product key will be unlimited. Product activation technology effectively combats software non-genuine behavior by limiting the number of activations that a particular product key allows on different PCs.

How can I determine if the product I have installed is activated?

In all Office XP family products, users can select “Activate Products from the Help“Menu” Determine the current activation status. In the Windows operating system, users can select “Start”,“Program","Accessories", "System Tools", "Activate Products" to determine activation status.