Right-click win7 and add "Get administrator privilege". In win7, incorrect operations may cause some file directories to be deleted or changed only after obtaining administrator privilege. Therefore, administrator privilege is required. However, in the newly installed system, the right-click menu item does not have the "get administrator permission" option. Therefore, you need to manually add it by creating a new "Get administrator permission. reg file, open it in the editor, copy the following content, save double-click to add to the registry: xml Code Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT \ * \ shell \ runas] @ = "Get administrator permissions" "NoWorkingDirectory" = "" [HKEY_CLASSES_ROOT \ * \ shell \ runas \ command] @ = "cmd.exe/c takeown/f \" % 1 \ "& icacls \" % 1 \ "/grant administrators: F "" IsolatedCommand "=" cmd.exe/c takeown/f \ "% 1 \" & icacls \ "% 1 \"/grant administrators: F "[HKEY_CLASSES_ROOT \ exefile \ shell \ runas2] @ =" Get administrator permissions "" NoWorkingDirectory "=" "[HKEY_CLASSES_ROOT \ exefile \ shell \ runas2 \ command] @ =" cmd.exe/ c takeown/f \ "% 1 \" & icacls \ "% 1 \"/grant administrators: F "" IsolatedCommand "=" cmd.exe/c takeown/f \ "% 1 \" & icacls \ "% 1 \"/grant administrators: F "[HKEY_CLASSES_ROOT \ Directory \ shell \ runas] @ =" Get administrator permissions "" NoWorkingDirectory "=" "[HKEY_CLASSES_ROOT \ Directory \ shell \ runas \ command] @ =" cmd.exe/ c takeown/f \ "% 1 \"/r/d y & icacls \ "% 1 \"/grant administrators: f/t "" IsolatedCommand "=" cmd.exe/c takeown/f \ "% 1 \"/r/d y & icacls \ "% 1 \"/grant administrators: f/t"