Ubuntu breaks Windows 7 after every boot

[shamushand]

I currently have a Windows 7/Ubuntu/Mac OS triple boot. However, every time I boot into Ubuntu 10.10, then boot into Windows, it fails to boot until a chkdsk is run. I see no particular reason this should happen, is there a way to either patch this, or to prevent Ubuntu from accessing the NTFS partition? I think this is where the problem is focused.

[Sef]

First let's check how you partitioned your machine.

Applications > Accessories > Terminal

then copy and paste this command:


sudo fdisk -l

copy and paste the results here.

[shamushand]

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd9b3496e

Device Boot Start End Blocks Id System
/dev/sda1 1 13 102400 7 HPFS/NTFS
/dev/sda2 13 42580 341913600 7 HPFS/NTFS
/dev/sda3 42580 45894 26622976 83 Linux
/dev/sda4 * 45894 60802 119743488 af HFS / HFS+