I am currently in US on H1-B and wanting to switch to F-1? How long does this process usually take? Is there an option for adjustment of status or do I have to leave the country to get the F-1 stamp?
If you are maintaining H-1 status on the date your H-1 to F-1 change of status application is received by USCIS, you can apply for H-1 to F-1 change of status within USA. Check with your school. They should be able to guide you.