Windows Error: restore & window explorer

[madking153]

Hi,

Today when i restart my computer, I found that my windows XP has restored to
setting in last year. Not only windows, all other application too....the bad thing is , even my document also been altered. ( some of my Word files are gone )

Another thing, when I use my windows explorer to browse my video, an error windws always pop up ( dr .watson debugger ....) and it occurs quite often.

What should i do ?

thanks

 

[madking153]

pls help. i need to restore my computer in yesterday condition dont know what happen to computer - just restart then now is like this

 

[Osiris]

open restore and select yesterdays date