If your goal is to remove "long" or unnecessary built-in features (often called bloatware) to improve performance:

: Entering a genuine 25-digit product key is the only official way to permanently remove the watermark and unlock all customization features. Registry Editor Workaround

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform\Activation Find the entry named and change its value to Restart your PC. Command Prompt (Test Mode)

: This method can hide the watermark temporarily, though it does activate Windows. Registry Editor and run as administrator). Navigate to:

. While some users still search for it for Windows 10 Pro, modern versions of Windows handle activation differently, making this specific legacy tool largely obsolete and often flagged as a security risk. Removing the Activation Watermark