Windows. Fix COM + Components

Fault description:
An error is prompted when you execute "COM + Component Management Console" and try to expand "COM + app", as shown below:
<Error code 80040154-class not registered>
An error occurred while processing the last operation. Error Code 80040154-class not registered the event log may contain additional troubleshooting information

Solution:

1. Find the "/% WINDIR %/system32/clbcatq. dll" file and rename it as "~ Clbcatq. dll (note the symbol "~"). "% WINDIR %" is an environment variable, which can be translated into "C:/Windows ".

2. restart the computer in safe mode (Press F8 until the computer is started to enter the Select Start interface ).

3. Open the registry and delete the following key value: HKEY_LOCAL_MACHINE/software/Microsoft/com3

4. In the "/% WINDIR %" directory, find the subdirectory "Registration. Delete this directory, including all the files contained in it.

5. restart the computer normally.

6. In command line mode, type "regsvr32/% WINDIR %/system32/ole32.dll", and click "OK" on the receiving prompt ".

7. Open "Control Panel", select "add or delete programs", and then select "Add/delete Windows Components.

8. Click "Next" to reinstall COM +. In fact, you do not need to choose to add or delete any components. COM + will be automatically reinstalled as usual.

After this step, you do not need to restart the computer; the re-registered COM + service will take effect immediately.