How to remove this type of hollow wall anchor?

downtheroad wrote:
If it is in dry wall, I back the screw out, lightly smack the anchor with a hammer and then spackle the dimple over....paint as needed.

I don't remove them, just slightly push them in.

This, what ever you do, don't attempt to rip them out, unless you like huge butcher jobs with drywall mud, sanding, texture coating to match, priming and painting.

Normally with this type of anchor, if you back the original bolt out a little bit, you can then tap the head and either break the shouler off or straighten out the bend behind the drywall to allow removal. If the shoulder comes off, simply push the anchor into the hollow wall and then mud the hole. If the bottom poriton with the threads does not straighten out the material enough to remove the anchor, then as indicated earlier, a drill will usualy remove enough of the metal holding the shoulder to allow removal.

If it is in dry wall, I back the screw out, lightly smack the anchor with a hammer and then spackle the dimple over....paint as needed.

I don't remove them, just slightly push them in.

Thanks for the info, I'll give it a try.

Back the screw out drill the back plate off then pull it out

I've always carefully drilled the head off, then pushed them into the wall.
By using a drill bit a few sizes larger than the screw that goes into the anchor you can get the head that is on the face side of the wall to come off.