Cleaning unwanted names in Computer-name and username.

While installing windows 7 -64 bit on my pc, I assigned some stupid names to my Computer-name and usernames. like asdfsa and gheiafjk. I can change the username. But how to remove all the stupid names of pc and user from the registry? Each and every trace.. Is there any good cleaning and renaming method, I tried using Registrar registry editor, doing a find replace thing, but that messed up my system really bad. I did a system restore to bounce back. And now its ok. Just wanted to get rid of those names.

Okay, I'll try this. and changing the registered owner name in windows registry and relevant entries.. What about that?

Bertison said:

Ztruker said:

The only way to get rid of unwanted User names is to delete them from Control Panel, User Accounts.

That's what UAC was made for!

Not exactly,

What is User Account Control?
User Account Control (UAC) is a security component that enables users to perform common tasks as non-administrators (called standard users in Windows Vista), and as administrators without having to switch users, log off, or use Run As. User accounts that are members of the local Administrators group run most applications as a standard user. By separating user and administrator functions, UAC helps users move toward using standard user rights by default.
When an administrator logs on to a computer that is running Windows 7 or Windows Vista, the user is assigned two separate access tokens. Access tokens, which contain a user's group membership and authorization and access control data, are used by the Windows operating system to control what resources and tasks the user can access. The access control model in earlier Windows operating systems did not include any failsafe checks to ensure that users truly wanted to perform a task that required their administrative access token. As a result, malicious software could install on users' computers without notifying the users. (This is sometimes referred to as a "silent" installation.)
Even more damaging, because the user is an administrator, the malicious software could use the administrator's access control data to infect core operating system files, and in some instances, become nearly impossible to remove.

User Account Control Step-by-Step Guide