Active Directory object modified

Hello,

I have an issue which someone might know how to deal with. Yesterday morning a user was able to connect with no problems.. This morning they try to log in to the domain and they are not being allowed. Checked the computer in the AD it looks like it was modified yesterday in the morning. Checked the security logs nothing out of an ordinary.

When I click information about that particular machine it says its Win 7 but in reality its Win XP. Any ideas of what happened? Can the account be reset? if so any way to check who reset the account?

I know removing it from the domain and puttting it back would fix this, but is there a way to find out what happened before doing this?

Many thanks
morlauskasAsked:
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Vinchenzo-the-SecondCommented:
Have a look in the event viewer on the client, their might be something logged.
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AwinishCommented:
The only way you can find anything is if auditing has been enabled else there is no other way.
http://awinish.wordpress.com/2011/06/15/auditing-only-auditing/
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