If you lose your key or decide that you don't want to use it any more, you can remove it from your account. Once a key has been removed from your account, you can't use it to sign in unless you register it again.
Note: If you're enrolled in the Advanced Protection Programme, you'll need to turn it off in your Google Account before you can remove all keys.
- Go to the two-step verification section of your Google Account. You may need to sign in.
- Next to the key that you want to remove, select edit
.
- Select Remove this key
OK.
OK.If you remove a key from your account, it can be used again by adding it back to your account or to another account.