In the search box type cmd. Right-click Command Prompt, and then select Command Prompt/PowerShell as an Administrator. The User Account Control window may appear, if so select Yes. In the Command Prompt window, type the following command bcdedit -set TESTSIGNING OFF and then press Enter .
How do I get rid of the build preview watermark?
If you no longer want to receive Insider Preview builds, you will have to unenroll your device: Go to Settings and choose Update & Security. Click on Windows Insider Program and Stop Insider Preview Builds to see your options.
How do I permanently remove activate Windows watermark?
Right-click on “Windows PowerShell” and click on “Run as administrator” as shown in the image below. #2) A window will open. Type “slmgr /renew”and press Enter. Now Restart your system, and the issue will be fixed.