I thought I'd start a master thread where we can post tips and tricks that we come across as we learn more about XP and its "features"
Two that I have used in the last couple of days are
To rebuild critical XP system files that may have become unstable try this.
SFC /SCANNOW
Place your XP disk into the CDROM then enter this at the run prompt exactly as its shown above with the space and it will do a system check for you.
the other goodie I found was a way to edit user profiles and log in type using the
Control userpasswords2 command at the run prompt...very slick.

Two that I have used in the last couple of days are
To rebuild critical XP system files that may have become unstable try this.
SFC /SCANNOW
Place your XP disk into the CDROM then enter this at the run prompt exactly as its shown above with the space and it will do a system check for you.
the other goodie I found was a way to edit user profiles and log in type using the
Control userpasswords2 command at the run prompt...very slick.




Unless of course you were insinuating something else... lol 
h:
Note that Tweak programs are just a registry hack in it's self that modifies the registry, only you don't know how or what it has modified.
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