Win7 computer wallpaper automatically changed by malicious tampering how to solve

1, press and hold the keyboard "win+r" shortcut key combination, open the "Run" Command dialog window;

2, in the Running Command dialog window, enter the "regedit.exe" command, and then click "OK" button;

3, click the OK button, this time will open the Registry Editor dialog window;

4, in the Registry Editor dialog window, sequentially expand "hkey_current_usersoftwaremicrosoftwindowscurrentversionpoliciesexplorer";

5, in the "Explorer" option in the right window blank click the right mouse button in the Pop-up Options menu, click "New-->dword (32-bit value)" option;

6, in the new DWORD (32-bit value) to rename it to "Nosavesettings";

7, renamed after the left mouse button double-click Open, in the Open dialog window of the "Data value" column, enter "1", and then click "OK" button.