You usually can’t change your age on Acer itself. If your Acer laptop is showing you as underage, the age is most likely tied to the Microsoft account or Google account you used to sign in, not to the Acer device.

What to do

  1. Sign in to your account online.
  2. Update the birth date in the account profile.
  3. Save the changes.
  4. Sign out of the laptop, then sign back in so the new age is recognized.

If it says you’re a child

If your account is being treated as a child account, you may need an adult account to approve the change. In Microsoft Family settings, an adult can go to the child’s profile and edit the personal info there.

If this is an Acer Chromebook

For an Acer Chromebook, age restrictions are often managed through Google Family Link, not Acer. In that case, the parent or guardian account has to change the supervision settings or account details.

Simple rule

  • Acer device: usually not where age is stored.
  • Microsoft account: change birth date in the Microsoft profile.
  • Google account on Chromebook: change it through Family Link or the parent account.

If you want, I can give the exact steps for a Windows Acer laptop or an Acer Chromebook.