I only have 1 active user account on this system.
Code:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Windows\system32>ICACLS C:\Windows\ServiceProfiles\NetworkService
C:\Windows\ServiceProfiles\NetworkService NT AUTHORITY\SYSTEM:(OI)(CI)(F)
BUILTIN\Administrators:(OI)(CI)(F)
NT AUTHORITY\NETWORK SERVICE:(OI)(CI)(F)
Successfully processed 1 files; Failed processing 0 files
C:\Windows\system32>ICACLS C:\Windows\ServiceProfiles\NetworkService\NTUSER.DAT
C:\Windows\ServiceProfiles\NetworkService\NTUSER.DAT NT AUTHORITY\SYSTEM:(I)(F)
BUILTIN\Administrators:(I)(F)
NT AUTHORITY\NETWORK SERVICE:(I)(F)
Successfully processed 1 files; Failed processing 0 files
C:\Windows\system32>DIR C:\Windows\ServiceProfiles\NetworkService /as
Volume in drive C has no label.
Volume Serial Number is C497-8A22
Directory of C:\Windows\ServiceProfiles\NetworkService
29/04/2012 22:57 262,144 NTUSER.DAT
14/07/2009 06:01 65,536 NTUSER.DAT{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.TM.blf
14/07/2009 06:01 524,288 NTUSER.DAT{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.TMContainer00000000000000000001.regtrans-ms
14/07/2009 06:01 524,288 NTUSER.DAT{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.TMContainer00000000000000000002.regtrans-ms
08/12/2011 03:02 65,536 NTUSER.DAT{278f5e6a-20fb-11e1-9293-6cf04973492d}.TM.blf
08/12/2011 03:02 524,288 NTUSER.DAT{278f5e6a-20fb-11e1-9293-6cf04973492d}.TMContainer00000000000000000001.regtrans-ms
08/12/2011 03:02 524,288 NTUSER.DAT{278f5e6a-20fb-11e1-9293-6cf04973492d}.TMContainer00000000000000000002.regtrans-ms
08/12/2011 07:25 65,536 NTUSER.DAT{a4dcbf61-213f-11e1-897d-6cf04973492d}.TM.blf
08/12/2011 07:25 524,288 NTUSER.DAT{a4dcbf61-213f-11e1-897d-6cf04973492d}.TMContainer00000000000000000001.regtrans-ms
08/12/2011 07:25 524,288 NTUSER.DAT{a4dcbf61-213f-11e1-897d-6cf04973492d}.TMContainer00000000000000000002.regtrans-ms
10 File(s) 3,604,480 bytes
0 Dir(s) 334,415,753,216 bytes free
C:\Windows\system32>DIR C:\Windows\ServiceProfiles\NetworkService /ah
Volume in drive C has no label.
Volume Serial Number is C497-8A22
Directory of C:\Windows\ServiceProfiles\NetworkService
07/04/2010 23:12 <DIR> AppData
29/04/2012 22:57 262,144 NTUSER.DAT
14/07/2009 08:12 1,024 NTUSER.DAT.LOG
29/04/2012 22:57 226,304 NTUSER.DAT.LOG1
14/07/2009 05:45 0 NTUSER.DAT.LOG2
14/07/2009 06:01 65,536 NTUSER.DAT{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.TM.blf
14/07/2009 06:01 524,288 NTUSER.DAT{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.TMContainer00000000000000000001.regtrans-ms
14/07/2009 06:01 524,288 NTUSER.DAT{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.TMContainer00000000000000000002.regtrans-ms
08/12/2011 03:02 65,536 NTUSER.DAT{278f5e6a-20fb-11e1-9293-6cf04973492d}.TM.blf
08/12/2011 03:02 524,288 NTUSER.DAT{278f5e6a-20fb-11e1-9293-6cf04973492d}.TMContainer00000000000000000001.regtrans-ms
08/12/2011 03:02 524,288 NTUSER.DAT{278f5e6a-20fb-11e1-9293-6cf04973492d}.TMContainer00000000000000000002.regtrans-ms
08/12/2011 07:25 65,536 NTUSER.DAT{a4dcbf61-213f-11e1-897d-6cf04973492d}.TM.blf
08/12/2011 07:25 524,288 NTUSER.DAT{a4dcbf61-213f-11e1-897d-6cf04973492d}.TMContainer00000000000000000001.regtrans-ms
08/12/2011 07:25 524,288 NTUSER.DAT{a4dcbf61-213f-11e1-897d-6cf04973492d}.TMContainer00000000000000000002.regtrans-ms
13 File(s) 3,831,808 bytes
1 Dir(s) 334,415,753,216 bytes free
C:\Windows\system32>REG QUERY HKU
HKEY_USERS\.DEFAULT
HKEY_USERS\S-1-5-19
HKEY_USERS\S-1-5-20
HKEY_USERS\S-1-5-21-1713040681-1314412740-1622756178-1000
HKEY_USERS\S-1-5-21-1713040681-1314412740-1622756178-1000_Classes
HKEY_USERS\S-1-5-18
C:\Windows\system32>REG QUERY HKU\S-1-5-20
HKEY_USERS\S-1-5-20\AppEvents
HKEY_USERS\S-1-5-20\Console
HKEY_USERS\S-1-5-20\Control Panel
HKEY_USERS\S-1-5-20\Environment
HKEY_USERS\S-1-5-20\EUDC
HKEY_USERS\S-1-5-20\Keyboard Layout
HKEY_USERS\S-1-5-20\Network
HKEY_USERS\S-1-5-20\Printers
HKEY_USERS\S-1-5-20\Software
HKEY_USERS\S-1-5-20\System
C:\Windows\system32>REG QUERY HKU\S-1-5-20\Environment
HKEY_USERS\S-1-5-20\Environment
TEMP REG_EXPAND_SZ %USERPROFILE%\AppData\Local\Temp
TMP REG_EXPAND_SZ %USERPROFILE%\AppData\Local\Temp
C:\Windows\system32>REG QUERY "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-20"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-20
ProfileImagePath REG_EXPAND_SZ C:\Windows\ServiceProfiles\NetworkService
Flags REG_DWORD 0x0
State REG_DWORD 0x0
C:\Windows\system32>