Change your name if you will. Your certificates wont be changed but the name change will be gazetted and the gazette notice is available so your bank, employer, school will have access to the info on your name change.

If my official papers and certs wont change so what is the advantage?
Every-time you like apply to a new job and you are told the papers are fake.
What about being issued with a new ID and fasfort?

The answer is deed poll. This ensures that the person changing his/her name (Identity) is identified as the former as well as the later identity. Fraud and ID theft are a common feature now a days. Figure these:
From: To:
Joginder Singh Quincy Zuma Timberlake
Rogers Neo Roggi Rogern Branson

The deep poll is a cumbersome process that involves gazetment of the names and searing of affidavits. Thereafter A.K.A becomes a common middle feature in your series of names for avoidance of doubt. However, most documents issued in the previous names never change e.g certificate of birth the names remain as were given by parents at time of birth. Education certificates also don't change since the person issued the certificate was known by the former identity. Kitambulisho may change.

Heard that Mike Sonko changed his name from Gideon Mbuvi.
@wilyum ama wewe ni Mike sonko?

if Dick cheney or Tyson Gay didn't change their name, why would I bother to change mine, my name is Drunkard 10k Rollout, call me Drunkard if you're my friend, call me 10K if you're my family or Rollout for business.

@Wilyum, is your name something like Nataka Kumamoto?