: If your PC came pre-installed with Windows 7 (e.g., Dell, HP), it likely has a Certificate of Authenticity (COA) sticker on the casing with the product key. Many OEM devices also use a BIOS marker (SLIC table) to trigger automatic activation if reinstalled with the original recovery media. System Requirements (32-bit)

Click the button, right-click Computer , and select Properties . Scroll to the bottom and select Activate Windows now .

Windows 7 Professional (32-bit) reached its official end of life on . While Microsoft no longer provides security updates or official sales for this version, activation remains possible through several legitimate methods if you have a valid 25-character product key. Core Activation Methods

: Useful if online activation fails or you lack an internet connection.

If connected to the internet, choose and enter your 25-digit product key.

To ensure the system functions correctly before activation, verify these minimum hardware specifications: Activation Key for Windows 7 Pro 32-bit - Microsoft Q&A

Select your country from the list and choose .