urgent help required..........

[kuldeep bhardwaj]

hello guys
i think my pc is infected. 1 day while copying movies frm my friends hdd all in DivX frmt were playing tht day. but frm yesterday onwards 2 movies out of them r not working. media player classic is givin t error saying"cannot render this file" i had twive uninstalled & instaled latest k lite mega codec pack.but it is stil not working.
what 2 do now.while they were playing firstly. & after copying all movies in his hdd also it is showing no movies in it. but showing free space 2 be very low.
what 2 do now

[piyush gupta]

calculate free space in drive also see free space in drive properties & tell whats the difference

also which AV u se