Windows 8 RTM is out and those using it must have noticed that Windows 8 Final build 9200 (Core, Pro, Enterprise) contains a watermark. The watermark appears on non-activated Windows 8 on the lower right corner of the classic desktop. Windows 8 even shows an activation notification frequently if your Windows activation is pending. This can become intrusive for users running a 90-day evaluation copy or those using Rearm trick to use Windows 8 without activating. Luckily, a super easy and GUI based ‘Watermark and Activation Notification Remover for Windows 8 RTM’ is now available!

The tool named ‘OnThreeSeas’ offers the ability to remove the desktop watermark and activation notification from all versions of Windows 8. Supported system: Windows 8 RTM (Pro, Pro WMC, Core, Enterprise), both x86 (32-bit) and x64 (64-bit) version.
To use it, simply download the file and extract it using an archive program like
WinRAR. Right-click the Win8waterremover.exe file and Run it as Administrator. Click on the Install button and let the installation complete.

When installed, hit the ‘Restart Windows Now’ option to reboot Windows.

After rebooting, watermark and activation pop-ups should disappear. Enjoy!
Download
Here (v3.0)
Note: Those having older version 2.0 installed can update to latest version directly without uninstalling first.
Update: This tool even removes the ‘Activate Windows – Go to PC settings to activate Windows’ watermark that for us appeared after resetting Windows 8 Pro.
New v2.6 supports Windows 8 with language packs installed.

P.S. This tool is NOT something meant to crack or activate Windows 8 illegally.
Source:
XDA-DevelopersThis image is from my laptop
