I don't think you need to do anything else, usually just export and then restore will do it.
If we press Win+R button, then type below:
rundll32.exe keymgr.dll, KRShowKeyMgr
back up the credentials and restoring them again to check.
Also I consider that you could reset IE settings to check. Temporarily turn off your security software.
Hope this helps and please help to accept as Answer if the response is useful.