You will need to leave the UK and apply for a Tier 4 Visa in your home country.
Please see the Home Office website for more information.
You will need to complete the Tier 4 application form online. For more information please see here: https://www.sheffield.ac.uk/ss
In order to obtain a Tier 4 Visa, you will need a CAS number. If you are a continuing student, you can usually obtain this from International Student Support.
If you are returning to the University of Sheffield to do a main academic programme, the Admissions Service will email you with your CAS number once you have accepted an unconditional offer. Please see details on our web pages.
If you are returning to the University of Sheffield to study a course at the English Language Teaching Centre (ELTC), the ELTC will contact you with your CAS number once you have accepted an unconditional offer .