If you mean remove someone’s admin role in a Roblox group on PC , go to the Roblox website, open your group, enter Configure Group , then open Members and change that person’s role from Admin back to Member. A recent Roblox tutorial describes that same PC flow: Groups → Configure Group → Members → filter by Admin → switch the role to Member.

Steps

  1. Sign in to Roblox on your PC browser.
  2. Open Groups from the menu.
  3. Select the group you manage.
  4. Click Configure Group.
  5. Open Members.
  6. Filter the list to show Admin.
  7. Find the person and change their role to Member.

Notes

  • This only works if you are the group owner or have permission to manage roles.
  • If you meant a different “admin,” such as HD Admin in a Roblox game or parental controls , that is a different process. Roblox’s help pages and community posts treat those as separate settings.

When it’s not a group

If you installed Roblox on PC and want to remove the app itself, Roblox’s help page says to uninstall it from Programs and Features on Windows, then delete the Roblox folder in AppData\\Local if needed.

Should I give you the exact steps for group admin , HD Admin in a game , or parental controls?