I recently found out that, changing the file system on Lenovo Idea Pad S10 from FAT32 to NTFS, fix the blue screen problem that occur occasionally. Maybe because of how NTFS handle file system failure.
We can change the format of the disk by running this command on the command prompt...
convert c: /fs:ntfs (Please read below link before proceed)
http://support.microsoft.com/kb/307881