What/Who are all these "USERS" under HKEY_USERS?

[Tom Duprex]

I am not having any trouble. This is just a request to help me understand a
little bit more about XP. In looking at registry entries to become familiar
I noticed that under HKEY_USERS I have the following list of entries:

DEFAULT
S-1-5-18
S-1-5-19
S-1-5-19-Classes
S-1-5-20
S-1-5-20-Classes
S-1-5-21-1275210071-436374069-682003330-1003
S-1-5-21-1275210071-436374069-682003330-1003-Classes


The identical list appears in both my new WindowsXP home laptop and my old
WindowsXP Pro laptop. No one else uses these computers but me, there are no
other users. There is no administrator. Checking on my old Windows 98
machine only Default appeared under HKEY_USERS and I am just curious. Is
there a simple explanation what these additional entries are for. I assume
they are Okay and would normally be there.

TIA




--

 

[Shenan Stanley]

I am not having any trouble. This is just a request to help me
understand a little bit more about XP. In looking at registry entries
to become familiar I noticed that under HKEY_USERS I have the
following list of entries:
DEFAULT
S-1-5-18
S-1-5-19
S-1-5-19-Classes
S-1-5-20
S-1-5-20-Classes
S-1-5-21-1275210071-436374069-682003330-1003
S-1-5-21-1275210071-436374069-682003330-1003-Classes


The identical list appears in both my new WindowsXP home laptop and
my old WindowsXP Pro laptop. No one else uses these computers but me,
there are no other users. There is no administrator. Checking on my
old Windows 98 machine only Default appeared under HKEY_USERS and I
am just curious. Is there a simple explanation what these additional
entries are for. I assume they are Okay and would normally be there.

System entries.. Network, SYSTEM and so on - background users without local
logon rights.

18 is SYSTEM
19 is LOCALSERVICES
20 is NETWORKSERVICES
21's are your users.

 

[Ramesh, MS-MVP]

See also:

http://www.microsoft.com/resources/...Windows/XP/all/reskit/en-us/prnc_sid_cids.asp

--
Ramesh, Microsoft MVP
Windows XP Shell/User

Windows XP Troubleshooting
http://www.winhelponline.com