I has a child support case that I had 10 years probation for which was completed over 10 gears ago. How do I get it off my criminal record.

If you completed deferred adjudication probation, you may be eligible for an order of nondisclosure. That will not get it off your criminal record, but it does seal the record from public disclosure - meaning that it would only be visible to government agencies and licensing organizations. If you plead guilty and were placed on probation, you can never get it expunged and erased from your record completely.