Have you tried applying the default Windows icons through IconPackager? If not, try doing so, then uload IP.

Then, if you want to use an IP for everything but folder icons, then choose an IP, then go under the "Icons & Cursors" tab, then under "Folders." For each folder you wish to be the default, check the "Restore default icon" button.

Did you unload IP after you applied the default icons?

Did you try rebooting afterwards?

I read your post as to say you are having the problem of your folder icon not changing back to the windows default, after reseting them in Icon Packager.

If so, the following thread may help you... https://forums.wincustomize.com/367942