Hi,
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.
Best Regards,
Carl