Thanks for that. It helped in having good grip on the differences between FAT32 & NTFS.
In the MS-DOS mode, when I type:
CONVERT C:/FS:NTFS & press ENTER, I get a message asking:
Convert cannot run because the volume is in use by another process. Convert may run if this volume is dismounted first.
Would you like to force a dismount on this volume ??? (Y/N)
What does that mean ??? I was only using the Internet at the time.