Step 1: Verify the System component

=========================

1. Close all instances of Internet Explorer.

2. Click Start and Run, type "REGSVR32 wuapi.DLL" (without quotes) in the Open box and click OK.

Note: There is a space between regsvr32 and wuapi.DLL

3. When you receive the "DllRegisterServer in wuapi.dll succeeded" message, click OK.






If the dll file can be registered successfully, let's move on to step 2.



Step 2: Verify the *.cat file in the Catroot folder

====================================

1. Open "My Computer", and click Tools->Folder Options and click the View tab.

2. Please uncheck the option "Hide extensions for known files types".

3. Click Start, click Run, copy the following command in the Open box, and then click OK:



%windir%\System32\CATROOT\{F750E6C3-38EE-11D1-85E5-00C04FC295EE}



4. In the open folder, click File on the Menu bar and select New

5. Create a New Text Document file

6. Please type the name Update.cat and press Enter to rename the file to Update.cat



Step 3: Rename all the Windows Update temporary folders

==================================

1. Click Start, Run, type: notepad C:\remove.bat and press Enter. Choose Yes when you are prompted.

2. Copy the following commands and then paste them into the opened Notepad window.



net stop wuauserv

net stop CryptSvc

ren %windir%\system32\catroot2 catroot2.old

ren %windir%\SoftwareDistribution sold.old

net start CryptSvc

net start wuauserv



3. After you paste the above commands, please close the Notepad window. Choose Yes when you are prompted to save the file.

4. Click Start, Run, type: C:\remove.bat and press Enter to run the commands we have pasted.