FIXED: Windows 7 test mode watermark
Windows 7 Test mode message
Windows 7 Test mode removal
Pretty easy to fix this problem in Windows 7, there are a few ways of fixing it try the first method first and restart the computer after running each solution, the message should be gone after. It is always best to be logged on as an administrator to fix these issues.
Method #1
Click on Start, and then type cmd in the Search box.