Winlogon process 100% cpu solution

Recently, a friend's computer has encountered a problem of 100% occupation of WINLOGON CPU. It has suffered from no good anti-virus software. It has been smashed for a while, and now it has been manually killed and it has a bad smell.

After encountering winlogon cpu 100% occupation, the system starts slowly and the process of 1 minute on weekdays becomes 1 quarter of an hour. The endurance was not enough and the format was reinstalled. If you are waiting for peace, open the task manager when you enter the desktop, and adjust the runlevel of the winlogon process to the lowest level. After that, the system operation is normal. Only then can you find the culprit, that is MFC48.DLL.

Windows core has MFC40.DLL MFC42.DLL is no MFC48.DLL, therefore, you must kill it. However, it is not visible in the window interface, although it is indeed located in the system32 directory.

Start manually clearing it, follow the scheme below:

End all MFC48.DLL threads, of course, use the thread to view the software;

Start running cmd

cd c:\\windows\\system32 attrib -s -h -r mfc48.dll

Back to the window interface, you can see it now.

In the final step, overwrite it with mfc42.dll. I thought it would be a good idea to delete it. After the restart, it came back again, so I had to cover it, so I was immune.