A:AnswerBottom side of the laptop has 2 grooved ports for speaker output. The speakers are fitted inside your laptop and are not available to the common user's removal or fiddling with. They're built-in.
A:AnswerIt could be malware, yes. You might post your question on the Acer Community where there are many users that post questions and offer help and advice on Acer products. The link is: https://community.acer.com/
A:AnswerYou can use external cards or devices to expand the storage. I've used external CD/DVD drives for storage and there are supposed to be external storage cards and drives you can buy and then use small external cards you can buy at any drug store or photo outlet to store stuff on.