confused

Hi

I am hoping someone can help me - its appears that the administrator account
has disappeared - My husband and I both have our accounts but neither of us
seem to be the administrators

Initially when i set this up I am sure that I was the one with the
administrator access - now neither of us seems to have it

Because of this neither of us can access the user accounts and we can not
download software etc

Any ideas how I can get back the administrator access??

Hoping for a positive response :-)

Thanks in advance