|Just try these one..|
@ command prompt.. (start > run > type 'cmd' ''a window will open')
type " regsvr32 /i shell32.dll " press Enter
will be okk..
still having issue..
open a notepad copy paste the below given in between "==="
save its as anyname.bat and double click the file
attrib -r -s -h autorun.inf > %temp%\atrb.txt
del /s/f/q C:\autorun.inf > %temp%\cln.txt
it wil delete the virus in ur pc which doesnt allows u to open C drive..
after that just restart the PC it will be okk..
still also facing issue..
keep in touch..