This is a little story of this night. When i try to open my PC and found one of partition is unreadable. The disk where usually has name Data (L:) changed to Local Disk (L:). I was shocked because all of my projects is located there.
Ooops, i got panic and try resolve with googling. And this is my solutions for this problems.
1. Going co Command Prompt (Run ~> type 'cmd')
2. type chkdsk /r /f l: (without quotes, assumed my disk is drive l)
3. It's take a several times, just patient. My PC need an hour to verify bad data.