Presentation of the software
CCleaner (Crap Cleaner) is a software developped by Piriform. It permits not to get your computer over-charged by tons of temporary files or unused executables and files, which occupy a lot of space in your computer. Some of these files can actually be running every time your computer starts, making it work in an useless manner for you, making your processor and computer run harder for nothing. All of this should speed up your computer starting time, reduce your RAM usage and liberate space from your hard disk.
Dropbox is a service proposed by Dropbox Inc. which permits its users to gather data and files on online servers, also named as the "Cloud". The advantage of this software (and service provider) is that it is available on most of the platforms. On a computer, you will be able to find it on Mac OS X, GNU/Linux and Microsoft Windows. On mobile and tablet, it is available on iOS, BlackBerry OS, Windows Phone and Android. There is also a web interface, which is available from everywhere.
For a personnal usage, you can use Dropbox to save elements on different devices, giving you the possibility to centralize all your data. You can also share your data and files with multiple users, using them to make saves of projects and be sure you always have earlier versions (even if git is way better for that) or just keep classical data like pictures, videos or softwares.
The free version can be enough to an extent, as you have a quite limited space, which is 2 Go of data. If you need to store videos, softwares or games, it would be more appropriated to look for other solutions, or to get a premium membership.
To download the free version of Dropbox, get to this link: "https://www.dropbox.com/downloading".
File transfer with Dropbox
The Dropbox service is available to use on the web brower, but it is way easier to transfer and synchronize files from and into your computer if you have the software downloaded. Once your account is created, you will be able to start using the service.
It should appear like any external drive would on your computer, but has its little specific part like you can find here:
This repository will contain the different files, folders and all the data you've put into your Dropbox space. As it is stocked on your PC, it is also syncronized on the Dropbox servers as a replication. This means that if you are using a shared foler and someone changes something, you will instantly download the new or modified files (internet connection needed).
The previous part was taking part into the desktop app. You can modify folders rights or access rights to users or group of users. This can be done from the web interface, as it is more complete and multiplatform. Here is what the interface looks like:
Dropbox gives you the possibility to easily share your files and folders. For that, you must send invitations by email, to the contact to give them an access to the folder. As said ealier, this access can be limited as the administrator of the folder can manage access rights for each user or group of users that have been invited.
Dropbox Paper is a new section that permits users to create and share documents. They can all write and create at the same time. It looks very similar to Google sheets, but is pretty useful being on the same platform as Dropbox. This helps not mixing multiple platforms, creating confusion of where some documents are.
Dropbox Transfer (which is still in beta) proposes a new solution of transfer for files under 3 Go. It permits to send a copy of the original file, while permitting you to monitor if the file has been received and downloaded by the user you sent it to. As seen on the screen, files can be activated or deactivated, permitting secure sharing.
Dropbox Showcase permits to present projects to others. You will be able to manage images, files and text to make a great presentation to your collegues. You will be able to set access to the project, share it and even being able to see who saw, downloaded or comment files you did put online. This is a great tool to present a project to anybody.
Dropbox is a really great tool to keep data saved and accessible throughout multiple platforms. Its 2 Go free membership could be of great use, as it can help sharing important files easily. It is quite intuitive and easy to put in place. More space is available though a paid membership, which gives you more space to hold files. Ask your school for a premuium school version of dropbox, which is not really costy for them and gives you more space to use.