Solution: 1. 1. Shut down the wgatray.exe process 2 in the memory. Change wgatray.exeto wgatray1.exe in the system32directory, and change wgalogon. DLL is changed to wgalogon1.dll, so that no prompt will be displayed when you restart the computer. windows Genuine Advantage notification (kb905474) Windows Genuine Advantage notification tool can notify you whether your windows copy is genuine. If you find that your system is not genuine, this tool will help you obtain a copy of the Windows License. Details... this patch cannot be used. because ms is collecting user information. you may have already installed this patch with Brother D. After updating the patch for Windows Genuine Advantage notification (kb905474), a prompt will appear every time you start the system, after being started, there will be an icon in the tray, which is circulated on the Internet to add and delete the control panel.ProgramSecret, but after carefully searching the registry, I still found this hateful thing. HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ y Y \ login will not be started automatically. Then, delete wgatray.exe in C: \ WINDOWS \ SYSTEM 32 and search again, delete all files in another folder and restart them. then go to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ Winlogon \ y Y \ wgalogon and delete it. Remember not to update again next time!