- If your have problem on using our product, please visit our Tutorial Page first. If it doesn't solve your problem, then send us email from program's Help menu -> Support. - Our product had passed installation test and work properly on our clean Windows machines (only Windows with latest update) before publishing, please do not send us any email regarding installation problem, such as not work, access denied, installation failure, because we are unable to figure out what is the problem without detail system information. We suggest you to try your luck on another machine.