First technique (the good)

The first technique is the one I’m using commonly and works very well for me. In this case we’ll try to temporary “coax” WFP only killing the explorer.exe process and replacing the system files located in the Dllcache folder first, so when Windows try to replace our tweaked copies in fact it will replace them with a tweaked copy too. Here we go:

Step One. Right-click the task bar and select “Task Manager”. Select the "Processes" tab and then select the “Explorer.exe” process, now click over the “End process” button. Your desktop icons, the taskbar and any opened explorer window will disappear. That's ok, we've killed the main process in the system, so nothing works at this moment. That's what we need, a vulnerable WFP.

Step Two. Now select "File -> New task (Run...)" from the main menu in the Windows Task manager window. This will launch a dialog box ("Create New Task"), select "Browse" and go to the folder where the tweaked files are located. Select only one of them, (i.e. shell32.dll) right-click it and select "Copy" from the menu. Now go all the way down (don't click over the "Open" button yet!) to your Dllcache folder. Select the file that's called exactly the same (shell32.dll in this example) and rename it to “shell32.bak”. With this you'll save a copy of your original file. Now right-click any empty area and select "Paste" from the menu. The deceit is done.

Step Three. Go up one level (to System32 folder) and repeat the same process, renaming your original file to .bak and right-click -> "Paste". Click the "Cancel" button in this window, and you'll be back to the "Create new task" dialog. Type “explorer” in the "Open" text field and hit "Ok". You’ll get a couple of warning messages. Click “Cancel” to the dialog:

And click “Yes” to the dialog:

These messages will appear because Windows is recognizing both copied files, in Dllcache and System32 folders, as modified files. So, if you see the messages, your file has been properly replaced.

Advantages of this technique: You’ll keep a copy of your original files. If something goes wrong, you’ll be able to fix it using your back up copy. You won’t make big (and risky) changes to your system. After some time using this technique, I can tell you that it’s very safe and reliable.

Disadvantages: Take some time to replace every file. If you’re replacing a bunch of them, the process can be really tired and boring.

Second Technique (the bad)