▁a ▁folder ▁of ▁that ▁name ▁already ▁exist , ▁the ▁profile - cre ation ▁process ▁will ▁create ▁a ▁new ▁one , ▁typically ▁named ▁username . comput ername , ▁on ▁work group ▁computers , ▁or ▁username . domain name ▁on ▁Active ▁Directory ▁member ▁computers . ▁ ▁Once ▁a ▁profile ▁folder ▁has ▁been ▁created , ▁Windows ▁will ▁never ▁automatically ▁rename ▁that ▁folder . ▁Thus ▁if ▁the ▁username ▁itself ▁is ▁subsequently ▁changed , ▁the ▁profile ▁folder ▁will ▁remain ▁as ▁is , ▁and ▁the ▁profile ▁will ▁no ▁longer ▁match ▁the ▁username , ▁which ▁could ▁lead ▁to ▁confusion . ▁For ▁this ▁reason , ▁the ▁administrator ▁might ▁want ▁to ▁avoid ▁ren aming ▁user ▁accounts ▁if ▁at ▁all ▁possible , ▁or ▁rename ▁the ▁folder ▁manually ▁and ▁edit ▁the ▁registry ▁to ▁reflect ▁the ▁changes . ▁ ▁The ▁new ▁profile ▁is ▁created ▁by ▁making ▁a ▁copy ▁of ▁a ▁special ▁profile ▁named ▁Default ▁User . ▁It ▁is ▁perm iss ible ▁to ▁modify ▁this ▁Default ▁User ▁profile ▁( with in ▁certain ▁gu idel ines ) ▁so ▁as ▁to ▁provide ▁a ▁custom ized ▁working ▁environment ▁for ▁each ▁new ▁user . ▁Mod ification ▁of ▁the ▁Default ▁User ▁profile ▁should ▁ide ally ▁be ▁done ▁prior ▁to ▁any ▁users ▁logging - on ▁to ▁the ▁computer . ▁ ▁If ▁a ▁user ▁has ▁already ▁logged ▁on ▁once ▁or ▁more , ▁the ▁Default ▁Profile ▁has ▁no ▁effect ▁what so ever ▁for ▁that ▁user . ▁ ▁Profile ▁contents ▁N T USER . DAT ▁Within ▁the ▁root ▁of ▁the ▁profile , ▁a ▁file ▁named ▁N T USER . DAT ▁contains ▁the ▁user ' s