Preparing for enrolment
Have you been accepted onto a course of study? Please bear in mind that you cannot use all the facilities at your university, such as the library for example, until you have enrolled. You normally have to attend in person in order to enrol at your university. Make a careful note of the deadline and ensure that you enrol in good time. All the relevant information can be found in your letter of admission.
Applying for a residence permit
If you come to Germany from a country outside the EU/EEA for the purpose of studying, you will need a residence permit (Aufenthaltserlaubnis) in order to remain, even if you did not need a visa in order to enter the country. To this end, you must register with your local Foreigners' Authority within three months of entering the country. The best way to do this is to ask the International Office at your university which authority is responsible for you. You can find further information on this subject on the DAAD website.
Start your studies successfully
The Study in Germany website has plenty of useful tips on how to make a successful start to your studies in Germany and how to plan your day best.
Study in Germany