How to check if Windows is genuine Step-by-step methods

Did you buy a used computer, or maybe you reinstalled the system and are unsure about the license status? Questions about whether Windows is legal arise more often than you might think. The absence of a watermark in the corner of the screen indicates that the system is active. In this guide, we will show specific methods that will allow you to verify the Windows activation status on your computer in a few minutes. You will also learn which signs may indicate an illegal copy of the system and what to do if it turns out that your Windows requires activation.

Why it is worth verifying the system license status

Many users downplay the issue of software legality until they encounter real problems. Meanwhile, checking Windows legality matters not only formally. A system without proper activation does not receive full security updates, which exposes the data on your computer to hacker attacks and malware. Microsoft regularly releases patches that fix discovered vulnerabilities, but they reach only users with a valid license.

Another matter is functionality. An unactivated Windows sometimes displays an extremely annoying watermark in the lower right corner of the screen, thus blocking the ability to change the wallpaper and interface color. Although the system still works, using it becomes less comfortable. If you use the computer for work, such a view during presentations or video conferences can give an unprofessional impression.

How to check Windows license through system settings

The simplest verification method is to use the system’s built-in settings. This approach does not require knowledge of text commands or advanced technical skills, so it is useful for every user. To check the Windows license, open the “Start” menu and click the gear icon leading to “Settings.” Then go to the “System” section and select “About” (in Windows 11) or “System info” (in Windows 10). At the bottom of the window, you will find data about the system edition and activation status.

If you see the message “Windows is activated,” it means that your copy has been properly registered on Microsoft servers. You can also go directly to the “Activation” section in settings, where you will find detailed data about the license type – whether it is a digital version tied to a Microsoft account or a traditional product key.

Checking Windows legality through the command prompt

For those who prefer quick text methods, a command is available in the system console. Checking Windows legality this way takes a few seconds and provides precise information about the activation status. Press the Windows + R key combination, type “cmd” and confirm by pressing Enter. In the command prompt window, type the command “slmgr /xpr” and press Enter again. After a moment, a dialog box will appear with information about the license status.

The message “The computer is permanently activated” confirms that you have a valid lifetime license. In the case of time-limited licenses, you will see an expiration date. If the system displays information about lack of activation, you will know that you need to enter a valid product key.

Illegal Windows – how to recognize warning signs

Sometimes illegal Windows can be recognized without running any commands. The operating system signals activation issues through characteristic signs. The most obvious symptom is the watermark “Activate Windows” in the lower right corner of the desktop, which does not disappear even after restarting the computer. Another sign is blocked personalization settings – inability to change wallpaper, accent colors, or lock screen. Frequent notifications from the action center reminding about the need for activation also indicate a license problem. If a message “Your Windows license will expire soon” appears at startup, it is another sign that you should verify the system status.

Attention should also be paid when a computer was purchased with an already installed system but the seller did not provide any license documentation or a COA sticker. In such cases, checking Windows legality with the methods described earlier will help clear up doubts.

Where activation problems come from

An unactivated system does not mean piracy. Activation problems may result from replacing computer components, especially the motherboard, to which the OEM license is assigned. Sometimes the cause is an error on Microsoft servers or an improper internet connection during verification. It also happens that the product key has been used on too many devices, exceeding the allowed activation limit.

What to do when your system requires activation

If after verification it turns out that your Windows does not have a valid license, you have several options. The simplest is to purchase an original activation key that will allow you to fully use the operating system. In the Key-soft.pl store, you will find cheap Windows 10 and Windows 11 keys in various versions – from Home edition to Professional.

The activation process with the purchased key is simple. Just go to Settings, select the “Activation” section, then click “Change product key.” After entering the 25-character code, the system will automatically connect to Microsoft servers and verify the license. The entire procedure usually takes a few dozen seconds, and after completion, the watermark will disappear, and you will unlock all personalization features.

Differences between Windows license types

When purchasing an activation key, it is worth knowing the differences between available license types. The Retail license is the most flexible form – you can transfer it between computers, provided it is active on only one device at a time. The OEM license is cheaper but is assigned to the motherboard, which means that when replacing this component, you will lose the ability to use it on new hardware.

Key-soft.pl also offers licenses linked to Microsoft accounts, which provide convenience when reinstalling the system. After logging into your account, Windows automatically recognizes the purchased license and activates without needing to re-enter the key. This is a convenient solution for people who regularly format their disk or change computers. When choosing a specific variant, consider your needs:

• Retail (Online) – license is not assigned to a specific device, can be transferred between computers.

• OEM – assigned to a Microsoft account or device, often used when buying new computers.

•  NonSLP – assigned to the motherboard, cannot be transferred to other hardware.

•  BOX – boxed license, allows changing the workstation and transferring the system.