Right click on Computer and go to Properties.
Click Change Settings .
In the System Properties dialog box, click the Advanced tab.
Under User Profiles , click Settings .
In the User Profiles dialog box, select the profile that you want to delete, click Delete , and then click OK .

Locate and then expand the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

Right-click the SID that you want to remove, and then click Delete .

Log on to the computer and create a new profile.