Access on library PCs: If you want to use Mendeley on a library computer, go to Mendeley.com and log in with your Mendeley username and password.
NOTE: Mendeley is not affiliated with or supported by Imperial ICT, so please avoid creating an account with your Imperial credentials.
There are a lot of video guides to get you started, here is a wholesome Introduction to Mendeley:
Mendeley allows you to insert citations and references from your library into your Word documents. You can format your document in a citation style of your choice, such as Harvard, Vancouver, IEEE, and others. Mendeley is compatible with both the desktop and online versions of Microsoft Word.
Access on library PCs: If you are using a library's PC, you might be prompted to sign in via your organisation. Ignore the prompt asking you to reconfirm your institution. Instead, click on Try another way and log in with your personal email account.
Mendeley Reference Manager is a new desktop application that is in process of replacing Mendeley Desktop.