Two unknown folders in C:

there are two folders in my c:

C:\$WINDOWS.~BT
there are subfolders like..
Program Files, ProgramData, Sources, Users, Windows and a file called $WimDesc
this folder is abt 350 mb.
and

C:\$WINDOWS.~LS
in this folder there is a file called install.wim which is a huge 2.24 gb...after primary research i have found that this is a vista installer file. i have installed vista long back and still using it. (i use xp to get on to the internet and xp is installed on C

.

i believe these are folders created by vista setup but i just want to be sure before i delete these.

P.s. there is a command in dos wherein u can create a log of the folder tree, but im not able to remember it. if the above is not enough and/or u remember the command pls let me know so that i can run that and post that complete folder tree log.

oh yes one more thing..
last week i fiddled with the registry as my comp was affected by some virus in the name of sujin.com.np or something like that...
what has now happened that whenever i start xp, i am given the dialog box to give username and password.
earlier it directly used to login into adminstrator. pls help me get it back.

The huge folders - delete them. You are right about them being created by windows setup.

the command is "tree" without quotes.
"tree /?" for more details.

Remove the virus with NOD32.

To fix it, Start->control panel->user accounts->Change the way users log on and off->tick both boxes. Apply options. Restart and it would logon into administrator automatically.

thxxxx

M

These are not dangerous folders.
These are the folders created by Vista when you try to update XP to Vista. Son no need to worry.