You could wait 7-10 years, at which point the items may fall off your report “naturally” via limitations.
You can enter the complex “dispute process” yourself and attempt to deal with the credit agencies on your own.
You can hire a professional credit score improvement firm to do the hard work for you.

The first option, waiting [...]

Do you know how the 3 major credit bureaus, Equifax, Experian and Trans Union came into existence?  If you applied for a loan prior to 1970, your credit file was ordered from the local credit agency, a local company that kept a paper file with the person’s name on it.  Back then, credit agencies would [...]