A good understanding of the coursework and expectations of the professors is crucial to passing and making good grades in any given course. Since in-person communication is not an option, make use of email, chats, forums, and other formats to communicate with fellow students and professors if you have any questions and need any clarification. In this way you can avoid misunderstandings from the outset, greatly enhancing your online college success.
Make sure your computer is protected against malware. If you have Windows 8 or 10, you should already have Windows Defender (but make sure it’s on and up-to-date). For further protection, you can pair that with the free version of Malwarebytes. It also doesn’t hurt to install an ad blocker like Ublock Origin (which is what I use in order to block malicious ads before they even get the chance to load – you can always whitelist the sites you trust if you want to support them.