Windows Update is currently unable to check for update issues in Win7

Failure diagram:

1, first Open "Start menu-All Programs-attachment-command Prompt", open the command prompt;

2, then enter "net stop Wuauserv" in the open window, carriage return executes, this order means to stop updating service;

3, then open the Start menu of the running dialog box, input "%windir%", enter;

4. Locate the "SoftwareDistribution" folder in the open folder, rename it to any name or delete it directly;

5, then continue to enter the "net start wuauserv" command in the Command Prompt window, carriage return, this command is to restart the start of the update service means;

6, then open the "Windows Update" item in Control Panel;

7, in the Windows Update interface click the "Check Update" button, this time you will find that the normal check can be updated OH.