I understand what you’re saying. As far as using your school account to sign in to Microsoft Office, the fact that you use a school account should not make a difference in terms of privacy. If you’re using Outlook and Teams for school, just don’t use them for personal things, and you should be fine. If you’re using the web versions through a web browser, then you have nothing at all to worry about. If you actually install the apps, you still likely have nothing to worry about, although I would make sure they’re at least signed out and closed when you’re not using them. You don’t want to accidentally send a message to your school’s Teams group when you’re drunk and watching YouTube videos at 3am.

As far as “enrolling in your school’s environment,” I’m afraid I don’t know what you mean by that. I know that some companies will install corporate nanny-ware on systems that they issue out to their employees (you’ve probably heard about CrowdStrike), but if you’re using a personal laptop for school, that’s not going to happen unless you hand it over to the school’s IT department and say “please fuck up my computer.”

Most likely the “cloud” file you see in your documents is a Microsoft OneDrive account that comes included with your school’s Office subscription. You can use it as a backup for schoolwork, ignore it completely, or just uninstall OneDrive. I like keeping my important stuff on local storage, but if you want a place to back up a project, go ahead and use it. Maybe don’t copy your porn stash over to your OneDrive account.

I am a strong advocate for keeping things separate on your computer. Not necessarily from a privacy standpoint, but more so just to keep everything tidy and easy to manage. If I was just using Teams and Outlook, maybe logging into an online portal, I’d probably just do exactly that without a second thought. If you find that you’re installing a lot of different applications for your studies, like I mentioned before, you might consider setting up a VM. A VM (Virtual Machine) essentially acts as a second computer within your own. You would install a hypervisor (I’d recommend VirtualBox for you), and inside the hypervisor, you can create separate “virtual” computers. You install your operating system, boot up the virtual machine, and use it just like you would a whole separate PC. When you’re done, you shut it down, and when you no longer need it, just delete the VM, and your PC isn’t cluttered with a bunch of stuff you don’t need. The “hard drive” for your VM lives in a single file, and once that file is deleted, it’s as if your virtual machine never existed. One way to think of it is like building a house inside a room in your own house. You still have a bedroom, a kitchen, bathrooms, and a living room. Only in this “virtual” house, you can paint the walls, throw parties, trash the carpet, invite hobos to live on your couch, whatever you want. When the house gets too trashed to live in any more, you just hit “delete” and it disappears; the actual house you live in is still in pristine condition.

So just as a summary, my opinion is just use your computer normally. Log into whatever school resources you need and don’t worry. If you need to install a whole bunch of school-related stuff that you don’t want cluttering up your PC, set up a VM.

It’s probably also worth noting that your school almost certainly isn’t trying to damage your computer or catch you doing something you want to keep private. They’re providing resources (a free Office subscription, for example) that they think might help facilitate your studies. You can use those resources, or not, but your computer is still your personal property, and your school isn’t trying to infringe on that.