DOS compatibility mode disk drive
Posted on 1998-11-29
I recently bought a used laptop, loaded with WIN95a (not by mfr). It crashed a LOT; usually on Windows startup.
After reloading Windows, the problem went away, but I found that under Performance it stated I was not getting optimal performance because my hard drive was using DOS compatibility mode.
I did a hardware setup in Windows, it found the hard drive controller, installed the required EIDE driver, and the DOS compatibility mode went away. But the computer began crashing again (sometimes have to boot 4 or 5 times to load Windows). I deleted the hard drive controller in Device Manager, it went back to DOS compatibility mode, and once again the problem is gone.
What is happening, why can't I get out of "real (DOS compatibility) mode" and use the Windows driver for the hard drive controller?
I checked with FDISK, and the drive is partitioned with FAT16. Is this the problem? From what I read elsewhere here WIN95a (what I have) uses FAT16 while only 95b uses FAT32, although I do not know if this is true. I wanted a more definitive answer before I undertake starting all over and re-partitioning the drive. Can I even partition FAT32 with 95a?
Finally, how much performance am I actually losing by leaving this thing in DOS compatibility mode?