Is it possible to switch a TR Visa, to a ED Visa (education visa) still, during COVID times?
and without having to re-enter the country?
TLDR : Answer Summary
Yes, it is possible to convert a TR (Tourist) Visa to an ED (Education) Visa while in Thailand during COVID-19, particularly for formal education students seeking degrees. However, the process may involve requirements from language schools that have been authorized to issue ED Visas. These schools need to provide documentation from the Ministry of Education. If you're currently undergoing quarantine in an Alternative State Quarantine (ASQ), it’s advisable to consult with schools regarding their policies for issuing visas to confirm if this can be arranged without leaving the country.