Kindly reference the following link(s):
Changing The Name To The Husband's Name After Marriage
Is it permissible for a Muslim woman to change the Surname after marriage
Changed my last name to my husband's name when I didn't know, what to do now?
Changing other than Father's name
Don't know my biological father, whose name should I take?
I work in an American call center & use fake name Is it permissible & income halal?
Can I change my last name if it has an Hindu origin?
Dropping a family Surname vs. Changing it