One of my friend bought some stuff from best buy in the year 2011 and he was not getting loan for that purchase because he was new to USA. That time I helped him by being consignee for him. But he wasn't very sincere in paying his monthly installment, specially in the year 2013, and that is now badly affecting my credit history. In Nov 2013 he paid off all his loan to best buy but the bad credit is still sitting in my credit history. I have been very sincere in paying all my bills like apartment rent, credit card payments or car loan etc. but just this bad history exist. Can anyone suggest how can I remove this from my credit history?