zhabizh :
thanks so much
instead of virus, might have any other problem?
If this happened recently, (all files protected), you might go back a couple of days (before it happened), and Windows Restore.
Or you could use the command prompt and the "attrib" command to reset the file attributes.
The folder/file attributes are probably set to "hidden" on the PC.
To Unhide files Enter this from a command prompt replacing "?" with your drive letter and "folder name" with the actual name.
attrib -h -r -s /s /d ?:\folder name\*.*
Then Go to explorer to see your files